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116-621: The Tallahassee Thunder were an arena football team based in Tallahassee, Florida . They were inaugural members of the af2 , the Arena Football League 's developmental league. They played for three seasons from 2000 to 2002, when they folded. They played their home games at the Tallahassee–Leon County Civic Center . The Thunder were established in 1999 and played in the af2's inaugural 2000 season . The team made

232-418: A touchdown , but stops after an extra point or two-point conversion attempt. If a quarter ends as a touchdown is scored, an untimed conversion attempt takes place. The play clock is 30 seconds, starting at the end of the previous play. In all arenas, the final minute of the period is measured in tenths of a second. Prior to the 2018 season, during the final minute of the fourth quarter, the clock stopped if

348-512: A "dead" player may participate on kickoffs, or as long snapper or holder. In 2006, the AFL changed its substitution rules such that free substitutions were allowed on all kickoffs. The most significant change was the introduction of free substitution , the so-called " Elway Rule". Previously, AFL coaches were limited to one substitution per position per quarter. From 2007 to 2019 and come 2024 , coaches can substitute players at will. The rationale

464-435: A 15-minute halftime ( ArenaBowl has a 30-minute interval). Teams are allowed three timeouts per half, and two per overtime period if regulation ends tied. Teams must use a timeout if there's an injury inside a half-minute left in regulation or overtime; exception applies to when team has no timeouts, and this occurs, they're granted an extra timeout. The clock stops for out-of-bounds plays, incomplete passes, or sacks only in

580-403: A Democrat, was elected in 1955, in the era of machine politics . In 1956, the city conducted its last major expansion when it annexed the land under O'Hare airport, including a small portion of DuPage County. By the 1960s, white residents in several neighborhoods left the city for the suburban areas – in many American cities, a process known as white flight – as Blacks continued to move beyond

696-650: A certain level of stability, however. The National Indoor Football League (NIFL) began in 2001 and was the most successful league in the early 2000s. The Indoor Football League (IFL) began in the autumn of 2008 when two already-established leagues (the Intense Football League and United Indoor Football ) chose to merge into a single organization. The IFL's expansion model has been based less on establishing new teams and more on acquiring existing teams from other leagues. The IFL has 16 teams as of 2024. Other, regional leagues include Champions Indoor Football (CIF),

812-499: A few team names and logos owned by outside parties, in a December 2009 bankruptcy auction. Shortly after the purchase, AF1 adopted the Arena Football League name, and the AFL relaunched in 2010 . The "iron man" rule, requiring at least six of the eight players to play on both offense and defense, was dropped, but most other past AFL rules remained unchanged. The relaunched league saw franchises return and renewed interest, but by

928-573: A field smaller than regulation. The first documented indoor regulation football games were those played at the Chicago Coliseum in the late 1890s. The first such game matched Michigan against Chicago on Thanksgiving Day 1896. The match was "the first collegiate game of football played under a roof." Adding to the novelty, as daylight turned to darkness, the field inside the Coliseum was lit with electric lighting. With seven acres of floor space,

1044-407: A four-team league for a "demonstration season" in the spring of 1987, with games televised on ESPN . Foster had to adopt a field that would fit within the smaller playing surfaces found in most arenas and thus created a field that was identical in size to a standard North American ice hockey rink, 200 by 85 feet (61 m × 26 m). This resulted in the field being 50 yards long (half of

1160-486: A heart attack soon after. Washington was succeeded by 6th ward alderperson Eugene Sawyer , who was elected by the Chicago City Council and served until a special election. Richard M. Daley , son of Richard J. Daley, was elected in 1989. His accomplishments included improvements to parks and creating incentives for sustainable development , as well as closing Meigs Field in the middle of the night and destroying

1276-417: A hockey rink; this is much like some Canadian football fields where the end zones can be cut off by a track). Each sideline has a heavily padded barrier, with the padding placed over the hockey dasher boards. The goalpost uprights are 9 feet (2.7 m) wide, and the crossbar is 15 feet (4.6 m) above the playing surface. Taut rebound nets on either side of the posts bounce any missed field goals back into

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1392-466: A major network television broadcasting contract with NBC , and eventually launched an official minor league , af2 , beginning in 2000. This effort basically served two purposes: one as a developmental league for the AFL, and as a place where former collegiate players could develop while at the same time learning and becoming accustomed to the unique arena rules, and secondly as a pre-emptive way of shutting out potential new indoor football competitors (this

1508-660: A model for the new field of social work . During the 1870s and 1880s, Chicago attained national stature as the leader in the movement to improve public health. City laws and later, state laws that upgraded standards for the medical profession and fought urban epidemics of cholera , smallpox , and yellow fever were both passed and enforced. These laws became templates for public health reform in other cities and states. The city established many large, well-landscaped municipal parks , which also included public sanitation facilities. The chief advocate for improving public health in Chicago

1624-427: A modified version of eight-man football . He also mandated a one-platoon system that required at least six players to play on both offensive and defensive downs. This had the added desirable effect of limiting team payrolls. There were numerous other rules designed to help the offense and ensure high-scoring games: To further an offensive passing advantage over the defense, Foster also imposed strict restrictions on

1740-472: A new grade with the use of jackscrews for raising buildings. While elevating Chicago, and at first improving the city's health, the untreated sewage and industrial waste now flowed into the Chicago River , and subsequently into Lake Michigan , polluting the city's primary freshwater source. The city responded by tunneling two miles (3.2 km) out into Lake Michigan to newly built water cribs . In 1900,

1856-463: A new ownership group that had acquired the league's trademarks and social media accounts announced another revival of the league, which began play in 2024. On May 12, 2024, kicker Melissa Strother made an extra point while playing for the Washington Wolfpack , making her the first female player to score a point in the league. Other indoor football leagues have been formed, without the use of

1972-588: A sport played outdoors. He worked on the game in the early 1980s, but put any plans for full development of it on hold while the United States Football League, an attempt to play traditional American football in a non-traditional (spring-summer) season, was in operation in 1983–1985. When the USFL ceased operations, Foster saw his opportunity. He staged a "test" game in Rockford, Illinois in 1986 and put together

2088-482: A success: One thing at least was settled by the game, and that is, that indoor football is literally and figuratively speaking a howling success. The men had no trouble in catching punts, and football was played on its merits, without the handicaps of a wet field or a strong wind. Toward the end of the second half it got very dark, and the spectators were treated to a novelty in the shape of football by electric light." Although both critically and commercially successful,

2204-571: A three- or four-point stance at the start of the snap. Two defenders serve as linebackers , called the Mac and the Jack. The Mac may blitz from the side of the line opposite the offensive Tight End. The Jack's role has changed after new rules set in place by the league in 2008. The Jack cannot blitz, but under new, more defense-friendly rules, the Jack Linebacker may roam sideline to sideline within five yards of

2320-471: A time from a 21-man active roster. Before 2007, players played both offense and defense except for the Quarterback , Kicker , and Offensive Specialist (Wide Receiver/Running Back combination) and two Defensive Specialists (Defensive Backs). If a player enters and leaves, from the moment he leaves the player is considered "dead" and cannot return to play until the designated time is served. Exception:

2436-473: A year of the AFL kicking off, its first challenger, the World Indoor Football League formed. The WIFL planned to play a schedule with six teams beginning in summer of 1988 with its own set of indoor-inspired rules, including an unusual system that would have eight men on offense and seven men on defense. Despite having backing from former NFL players, veteran coaches, and singer John Mellencamp ,

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2552-471: Is 17,000 square feet (1,600 m )). The scrimmage area is 50 yards (46 m) long (unlike the field in NFL which is 100 yards (91 m) long), and each end zone is approximately 8 yards deep, two yards less than the standard 10 yards. Depending on the venue in which a game is being played, the end zones may be rectangular (like a basketball court) or, where necessary because of the building design, rounded (like

2668-408: Is ahead after one possession wins. If the teams are tied after each has had a possession, true sudden death rules apply thereafter. Each overtime period is 15 minutes, and continues from the ending of the previous overtime period until the tie is broken. All overtimes thereafter are true sudden death; no games can be tied. This includes both games of all semifinal series. Chicago Chicago

2784-403: Is kicked off from the goal line, to start the halves and odd overtimes, or after any score. The team with the ball is given four downs to gain ten yards or score. Punting is illegal because of the size of the playing field, however, a field goal that either misses wide (therefore bouncing off the nets surrounding the goalposts) or falls short, may be returned. Thus an impossibly long field goal

2900-407: Is known to botanists as Allium tricoccum and known more commonly as "ramps". The first known reference to the site of the current city of Chicago as " Checagou " was by Robert de LaSalle around 1679 in a memoir. Henri Joutel , in his journal of 1688, noted that the eponymous wild "garlic" grew profusely in the area. According to his diary of late September 1687: ... when we arrived at

3016-449: Is most recently known as American Indoor Football (AIF) went through three names and two ownership changes in its first three seasons. Several other indoor leagues have been announced without ever actually commencing play, or operating only briefly with a handful of teams. Some were claimed attempts to form a second "major" league of indoor football while others were strictly efforts to form a new "minor" league. A few leagues have achieved

3132-434: Is played exclusively indoors, in arenas usually designed for either basketball or ice hockey teams. The field is the same width 85 feet (26 m) and length 200 feet (61 m) as a standard NHL hockey rink, making it approximately 30% of the dimensions of a regular American gridiron football field , and 19% of a Canadian gridiron football field (the total playing area, including the end zones of an Arena football field

3248-554: Is routinely ranked among the world's top six busiest airports by passenger traffic , and the region is also the nation's railroad hub. The Chicago area has one of the highest gross domestic products (GDP) of any urban region in the world, generating $ 689 billion in 2018. Chicago's economy is diverse , with no single industry employing more than 14% of the workforce. Chicago is a major destination for tourism , including visitors to its cultural institutions , and Lake Michigan beaches . Chicago's culture has contributed much to

3364-413: Is tantamount to a punt in other football variants. A receiver jumping to catch a pass needs to get only one foot down in bounds for the catch to be ruled a completed catch, just as in college football . Practically, this means that one foot must touch the ground before the receiver is pushed into the boards by an opposing player. Passes that bounce off the rebound nets remain "live." Balls that bounce off

3480-653: Is the most populous city in the U.S. state of Illinois and in the Midwestern United States . With a population of 2,746,388, as of the 2020 census , it is the third-most populous city in the United States after New York City and Los Angeles . As the seat of Cook County , the second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area , often colloquially called "Chicagoland" and home to 9.6 million residents. Located on

3596-825: The American Arena League (AAL) and National Arena League (NAL). Both CIF and the AAL were formed by mergers of existing leagues. The CIF was formed from a merger of the Champions Professional Indoor Football League and the Lone Star Football League in 2015. The AAL was formed in late 2017 as the combination of three leagues that each played one season: the Can-Am Indoor Football League , Arena Pro Football , and Supreme Indoor Football . Champions Indoor Football merged with

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3712-473: The Black Belt . While home loan discriminatory redlining against blacks continued, the real estate industry practiced what became known as blockbusting , completely changing the racial composition of whole neighborhoods. Structural changes in industry, such as globalization and job outsourcing, caused heavy job losses for lower-skilled workers. At its peak during the 1960s, some 250,000 workers were employed in

3828-699: The Calumet River in the industrial far South Side—flow either entirely or partially through the city. Chicago's history and economy are closely tied to its proximity to Lake Michigan. While the Chicago River historically handled much of the region's waterborne cargo, today's huge lake freighters use the city's Lake Calumet Harbor on the South Side. The lake also provides another positive effect: moderating Chicago's climate, making waterfront neighborhoods slightly warmer in winter and cooler in summer. When Chicago

3944-548: The Chicago School , the development of the City Beautiful movement , and the steel-framed skyscraper . Chicago is an international hub for finance, culture , commerce, industry, education, technology, telecommunications, and transportation . It has the largest and most diverse finance derivatives market in the world, generating 20% of all volume in commodities and financial futures alone. O'Hare International Airport

4060-475: The China Arena Football League , which played two abbreviated seasons in 2016 and 2019 but was not directly affiliated with the now-defunct AFL. A 2024 reboot of the Arena Football League uses the original league's rulebook with minor variations. Through the late 1990s, the Arena Football League was the only league playing any variant of the sport designed for indoor play. A clarification limiting

4176-580: The Great Lakes to connect to the Mississippi River. A flourishing economy brought residents from rural communities and immigrants from abroad. Manufacturing and retail and finance sectors became dominant, influencing the American economy . The Chicago Board of Trade (established 1848) listed the first-ever standardized "exchange-traded" forward contracts, which were called futures contracts . In

4292-525: The Jefferson Township , which now makes up most of Chicago's Northwest Side . The desire to join the city was driven by municipal services that the city could provide its residents. Chicago's flourishing economy attracted huge numbers of new immigrants from Europe and migrants from the Eastern United States . Of the total population in 1900, more than 77% were either foreign-born or born in

4408-503: The Miami , Sauk and Meskwaki peoples in this region. The first known permanent settler in Chicago was trader Jean Baptiste Point du Sable . Du Sable was of African descent, perhaps born in the French colony of Saint-Domingue (Haiti), and established the settlement in the 1780s. He is commonly known as the "Founder of Chicago." In 1795, following the victory of the new United States in

4524-578: The New Negro Movement , in art, literature, and music. Continuing racial tensions and violence, such as the Chicago race riot of 1919 , also occurred. The ratification of the 18th amendment to the Constitution in 1919 made the production and sale (including exportation) of alcoholic beverages illegal in the United States. This ushered in the beginning of what is known as the gangster era, a time that roughly spans from 1919 until 1933 when Prohibition

4640-803: The Northwest Indian War , an area that was to be part of Chicago was turned over to the U.S. for a military post by native tribes in accordance with the Treaty of Greenville . In 1803, the U.S. Army constructed Fort Dearborn , which was destroyed during the War of 1812 in the Battle of Fort Dearborn by the Potawatomi before being later rebuilt. After the War of 1812, the Ottawa , Ojibwe , and Potawatomi tribes ceded additional land to

4756-541: The Tallahassee Titans franchise by the American Indoor Football Association in 2006. Arena football Three leagues have played under official arena football rules: the Arena Football League , which played 32 seasons in two separate runs from 1987 to 2008 and 2010 to 2019; arenafootball2 , the AFL's erstwhile developmental league , which played 10 seasons from 2000 through 2009; and

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4872-463: The University of Chicago , Northwestern University , and the University of Illinois Chicago , among other institutions of learning . Professional sports in Chicago include all major professional leagues , including two Major League Baseball teams. The name Chicago is derived from a French rendering of the indigenous Miami–Illinois word shikaakwa for a wild relative of the onion ; it

4988-663: The Washington and Jackson Parks. During World War I and the 1920s there was a major expansion in industry. The availability of jobs attracted African Americans from the Southern United States . Between 1910 and 1930, the African American population of Chicago increased dramatically, from 44,103 to 233,903. This Great Migration had an immense cultural impact, called the Chicago Black Renaissance , part of

5104-545: The "deuce": if a kickoff goes through the uprights, the kicking team receives two points. This rule had previously been in effect in the IFL and the NAL . The league also instituted the rouge / single , as used in the CFL , whereby, on a kickoff, the kicking team receives one point if the receiving team fails to bring the ball out of its own end zone. After scoring a touchdown, the scoring team has

5220-429: The 10-yard line after any touchdown, if they want to. Any kickoff that goes through the uprights is scored as a "deuce", or two points. Four offensive players must be on the line of scrimmage at the snap ; one of the linemen must declare himself the tight end . One offensive player may be moving forward at the time of the snap as long as he has not yet crossed the line of scrimmage. Three defensive players must be in

5336-490: The 1800s, Chicago became the nation's railroad hub, and by 1910 over 20 railroads operated passenger service out of six different downtown terminals. In 1883, Chicago's railway managers needed a general time convention, so they developed the standardized system of North American time zones . This system for telling time spread throughout the continent. In 1893, Chicago hosted the World's Columbian Exposition on former marshland at

5452-477: The 1850s, Chicago gained national political prominence as the home of Senator Stephen Douglas , the champion of the Kansas–Nebraska Act and the "popular sovereignty" approach to the issue of the spread of slavery. These issues also helped propel another Illinoisan, Abraham Lincoln , to the national stage. Lincoln was nominated in Chicago for U.S. president at the 1860 Republican National Convention , which

5568-576: The 1960s, the Boardwalk Bowl , a post-season game involving small college teams, was contested at the convention center. The Bowl was an attempt to make Atlantic City more of a year-round resort in the pre-gambling era as opposed to a single-season one (the Miss America Pageant , also held at the center, likewise began as an attempt to extend the season beyond Labor Day). The Atlantic Coast Football League played its inaugural championship game at

5684-681: The 57th mayor of Chicago. Chicago is located in northeastern Illinois on the southwestern shores of freshwater Lake Michigan. It is the principal city in the Chicago Metropolitan Area , situated in both the Midwestern United States and the Great Lakes region . The city rests on a continental divide at the site of the Chicago Portage, connecting the Mississippi River and the Great Lakes watersheds . In addition to it lying beside Lake Michigan, two rivers—the Chicago River in downtown and

5800-455: The Chicago River were devastated; by 1933 over 50% of industrial jobs in the city had been lost, and unemployment rates amongst blacks and Mexicans in the city were over 40%. The Republican political machine in Chicago was utterly destroyed by the economic crisis, and every mayor since 1931 has been a Democrat . From 1928 to 1933, the city witnessed a tax revolt, and the city was unable to meet payroll or provide relief efforts. The fiscal crisis

5916-410: The Coliseum was destroyed in a fire less than two years after its opening. It hosted only four games, and its replacement could not accommodate an American football field. Later, at Madison Square Garden in 1902 and 1903, there were games known as the " World Series of Pro Football ." The games were played on a 70-yard by 35-yard dirt field but otherwise adhered to outdoor rules. Poor attendance led to

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6032-477: The Liberty Bowl moved to Memphis the next year, where it has remained. Unlike modern indoor football, the size of the playing surface and hence the rules were essentially the same as in the standard outdoor game, with rules updated to deal with contingencies for what could happen indoors, such as a punt striking the ceiling. The end zones were slightly shorter—eight yards instead of the standard ten (coincidentally,

6148-527: The Mississippi River. In 1871, the Great Chicago Fire destroyed an area about 4 miles (6.4 km) long and 1-mile (1.6 km) wide, a large section of the city at the time. Much of the city, including railroads and stockyards , survived intact, and from the ruins of the previous wooden structures arose more modern constructions of steel and stone. These set a precedent for worldwide construction. During its rebuilding period, Chicago constructed

6264-562: The South arrived in the city to work in the steel mills, railroads, and shipping yards. On December 2, 1942, physicist Enrico Fermi conducted the world's first controlled nuclear reaction at the University of Chicago as part of the top-secret Manhattan Project . This led to the creation of the atomic bomb by the United States, which it used in World War II in 1945. Mayor Richard J. Daley ,

6380-612: The United States in the 1816 Treaty of St. Louis . The Potawatomi were forcibly removed from their land after the 1833 Treaty of Chicago and sent west of the Mississippi River as part of the federal policy of Indian removal . On August 12, 1833, the Town of Chicago was organized with a population of about 200. Within seven years it grew to more than 6,000 people. On June 15, 1835, the first public land sales began with Edmund Dick Taylor as Receiver of Public Monies. The City of Chicago

6496-775: The United States of foreign parentage. Germans , Irish , Poles , Swedes , and Czechs made up nearly two-thirds of the foreign-born population (by 1900, whites were 98.1% of the city's population). Labor conflicts followed the industrial boom and the rapid expansion of the labor pool, including the Haymarket affair on May 4, 1886, and in 1894 the Pullman Strike . Anarchist and socialist groups played prominent roles in creating very large and highly organized labor actions. Concern for social problems among Chicago's immigrant poor led Jane Addams and Ellen Gates Starr to found Hull House in 1889. Programs that were developed there became

6612-600: The X cup (formerly Legends Cup and Lingerie Bowl), the LFL played a variant of indoor rules with most of its games in indoor stadiums, although a few teams experimented with playing in outdoor stadiums. The league's brief foray into Australia was played in outdoor stadiums; these teams nevertheless played under indoor football rules. All other women's leagues play on outdoor fields with outdoor rules; there have been several other attempts to form indoor women's football leagues, but none have made it to play. As its name implies, arena football

6728-553: The city include the central business district, called the Loop , and the North, South , and West Sides . The three sides of the city are represented on the Flag of Chicago by three horizontal white stripes. The North Side is the most-densely-populated residential section of the city, and many high-rises are located on this side of the city along the lakefront. The South Side is the largest section of

6844-529: The city was affected by a series of tenant rent strikes , which lead to the formation of the Chicago Tenants Protective association, passage of the Kessenger tenant laws, and of a heat ordinance that legally required flats to be kept above 68 °F during winter months by landlords. Chicago was the first American city to have a homosexual-rights organization. The organization, formed in 1924,

6960-415: The city's first African American woman mayor and its first openly LGBTQ mayor, was elected to succeed Emanuel as mayor in 2019. All three city-wide elective offices were held by women (and women of color) for the first time in Chicago history: in addition to Lightfoot, the city clerk was Anna Valencia and the city treasurer was Melissa Conyears-Ervin . On May 15, 2023, Brandon Johnson assumed office as

7076-424: The city's first female mayor, was elected. She was notable for temporarily moving into the crime-ridden Cabrini-Green housing project and for leading Chicago's school system out of a financial crisis. In 1983, Harold Washington became the first black mayor of Chicago. Washington's first term in office directed attention to poor and previously neglected minority neighborhoods. He was re‑elected in 1987 but died of

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7192-483: The convention center in 1962, but the game only drew 2,000 fans and the game would thereafter move to the home stadium of the team with the best regular season record. The Philadelphia -based Liberty Bowl game, which had been played at Municipal Stadium from 1959 to 1963, was moved into the Convention Center in 1964 for the contest between Utah and West Virginia . The game drew just over 6,000 fans, though, and

7308-515: The convention hall, with anti-war protesters, journalists and bystanders being beaten by police. Major construction projects, including the Sears Tower (now known as the Willis Tower , which in 1974 became the world's tallest building ), University of Illinois at Chicago , McCormick Place , and O'Hare International Airport , were undertaken during Richard J. Daley's tenure. In 1979, Jane Byrne ,

7424-402: The defensive formation, mandating that all defenses were required to play a 3-2-Monster formation with three defensive linemen, two linebackers, two cornerbacks, and one safety. Linebackers were not permitted to blitz and were required to stay in boxes behind the line of scrimmage, while defensive linemen were hindered by restrictions that prevented them from using certain techniques to penetrate

7540-466: The defensive team for two points. Coaches are given two challenges per game, as in the NFL; to challenge, they must throw their red flag before the next play. If the play stands as called after review, the challenging team loses a timeout. If a team wins both challenges used, a third is granted. Video review is automatic in the final half-minute of regulation, all overtime periods, and all scoring plays and turnovers. A game has four 15-minute quarters with

7656-479: The district and forcing a shutdown of electrical power. The area was shut down for three days and some buildings did not reopen for weeks; losses were estimated at $ 1.95 billion. On February 23, 2011, Rahm Emanuel , a former White House Chief of Staff and member of the House of Representatives , won the mayoral election. Emanuel was sworn in as mayor on May 16, 2011, and won re-election in 2015. Lori Lightfoot ,

7772-618: The eight-yard endzone length is the standard in modern indoor football). While several attempts to create a true indoor football game have been made since shortly after American football was developed, the first version to meet with relatively widespread success and acceptance was devised by Jim Foster , a former executive of the United States Football League and the National Football League . He devised his game while watching indoor soccer , another game derived from

7888-540: The end of the 2017 season, almost all of the league's teams had either folded or moved to other leagues, with only the Philadelphia Soul having existed prior to 2016. Five expansion teams, all in the Mid-Atlantic United States , were established over the next two years, before the league announced after the 2019 season that it was dissolving in a second Chapter 7 bankruptcy. However, on February 1, 2023,

8004-716: The exhibition was played at night under gas lamps. Other early indoor games included two exhibitions at Madison Square Garden II in December 1890. Springfield YMCA Training School and a Yale Senior Class team played on December 12, 1890. James Naismith scored a touchdown for Springfield, though Yale won the exhibition 16–10. The following day a second exhibition game was played, with Pennsylvania defeating Rutgers 20–12. The field at Madison Square Garden measured 260 feet (79 m) long and 100 feet (30 m) wide. In an exhibition at Tattersall's Pavilion in Chicago on December 16, 1893, Chicago defeated Northwestern 20-14 on

8120-526: The fair was technological innovation over the century since Chicago's founding. During World War II , the city of Chicago alone produced more steel than the United Kingdom every year from 1939 – 1945, and more than Nazi Germany from 1943 – 1945. The Great Migration, which had been on pause due to the Depression, resumed at an even faster pace in the second wave , as hundreds of thousands of blacks from

8236-402: The field of play. The ball is "live" when rebounding off these nets or their support apparatus. The entire goalframe and goalside rebound net system is suspended on cables from the rafters. The bottom of the two goalside rebound nets are 8 feet (2.4 m) off the playing surface. Each netframe is 32 feet (9.8 m) high by 30 feet (9.1 m) wide. A player is not counted as out of bounds on

8352-548: The goal line. To compensate for the smaller field, teams were "penalized" 20 yards upon crossing midfield. (The Bears' official Web site goes further and claims that field goals were outlawed for the 1932 game.) In 1930, the Atlantic City Convention Center constructed a nearly full-size indoor football field, and used it for one to three games a year during the 1930s; the stadium stopped hosting games in 1940 and did not resume hosting football games until 1961. In

8468-523: The last half-minute of regulation or overtime (there is only a half-minute warning , as opposed to the two-minute warning in the XFL /NFL and the three-minute warning in the CFL) or because of penalties, injuries or timeouts . The clock also stops for any change in possession, until the ball is marked ready for play; for example, aside from the final half-minute of regulation or overtime, time continues to run down after

8584-490: The league administrators and team owners had allowed player salaries and other costs to rise to the point where the league and many of the teams were losing a substantial amount of money. Late in the summer of 2009, with the team owners unable to agree on a plan for making the league viable again the AFL announced that it was folding, eventually putting its assets up in a Chapter 7 bankruptcy liquidation. The developmental af2, however, played its 2009 season as scheduled. Most of

8700-449: The league canceled its 1988 season, folded half of its franchises (including Mellencamp's), and made an unsuccessful bid for the remaining three teams to join the AFL; the WIFL never played a single game. In 1990, Foster patented the rules of arena football, meaning that only persons authorized by him could use his rules and his name for the sport. While the AFL asserted throughout the 1990s that

8816-403: The league had actively promoted for 20 seasons, and that the change took away a key component of what made arena football a distinctive sport. The iteration of the league that began play in 2024 restored the "ironman" rules at the beginning of the season. After the league reorganized, the league abandoned ironman play and restored free substitution; unlike in 2007, the reason for the 2024 change

8932-484: The league's inaugural season, and Terrell Owens joining the following year ( Michael Vick was also announced as a player midseason but would not play). FCF suspended operations following the 2022 season. The best-known indoor women's football league is the X League (formerly known as the Legends Football League, and Lingerie Football League ). Known for its scantily-clad players and its signature event,

9048-443: The length of a standard American football field) with eight-yard end zones (which may, if necessary, be curved in the end zones as hockey rinks are), and the field being slightly over half as wide as a standard football field. Foster adopted short-pile artificial turfs (which were then standard) such as AstroTurf for the field because of its ability to be easily rolled up when the arena is being used for other sports. Foster adopted

9164-454: The line of scrimmage and drop into coverage once the Quarterback pump fakes . (Before this rule, the Jack could not drop back into coverage until the ball is thrown or the quarterback is no longer in the pocket , and the Jack had to stay within the box designated by the outside shoulders of the offensive line , the line of scrimmage, and five yards back from the line of scrimmage.) The ball

9280-451: The lowest points are along the lake shore at 578 ft (176.2 m), while the highest point, at 672 ft (205 m), is the morainal ridge of Blue Island in the city's far south side. Lake Shore Drive runs adjacent to a large portion of Chicago's waterfront. Some of the parks along the waterfront include Lincoln Park , Grant Park , Burnham Park , and Jackson Park . There are 24 public beaches across 26 miles (42 km) of

9396-424: The new Arena Football League prior to 2024. Fan Controlled Football launched in 2021 following an interactive format inspired by video games, with "power-ups" and fans voting on plays. It generally targeted a higher caliber of player than the typical indoor league, with outdoor football veterans such as Johnny Manziel , Robert Turbin , Quinton Flowers , Quinn Porter , Shawn Oakman and Josh Gordon playing in

9512-493: The offensive line. Quarterbacks and placekickers were exempt from the one-platoon system, allowing two key scoring positions to be more specialized. The AFL also adopted the USFL's concept of playing in the late spring and summer, since this is when most hockey and basketball arenas have the fewest schedule conflicts (only competing with touring stadium rock concerts). The spring schedule has since been adopted by virtually all other professional indoor leagues as of 2010. Within

9628-425: The offensive team had the lead and did not advance the ball past the line of scrimmage. This prevented the "victory formation" (the offensive team merely kneeling down), or running other plays that are designed solely to exhaust the remaining time rather than to advance the ball downfield. This rule was eliminated in the interest of player safety. In the first overtime , each team gets one possession to score. Whoever

9744-465: The option of attempting a four-point conversion (akin to the three-point conversion seen in the UFL and its predecessors) from the opponent's ten-yard line, alongside the existing extra point and two-point conversion options. The rule was carried over as part of a pre-launch merger with Champions Indoor Football . Teams may go for two points from the 2.5-yard line, three from the 5-yard line, or four from

9860-577: The original open-air Madison Square Garden . Using nine-man sides , Pennsylvania defeated Rutgers 10–0 at the annual meeting of the Amateur Athletic Union on January 16, 1889. Two months later, on March 7, 1889, the first documented indoor football game was an exhibition between Pennsylvania and Riverton Club at the Philadelphia Academy of Music . Field dimensions for the 0-0 tie were no more than 200 feet long by 50 feet wide, and

9976-498: The padded walls that surround the field are "live"; the end zone walls were not live until the 2006 season. Come 2025 gunners must line up on their own 20-yard line on kickoffs, with one receiving player fielding from the end zone. The scoring is the same as in the NFL with the addition of a drop kick field goal worth four points during normal play or two points as a post-touchdown conversion . Blocked extra points and turnovers on two-point conversion attempts may be returned by

10092-564: The patent covered virtually every aspect of the game (from the 50-yard field to the eight-man format), a 1998 lawsuit ( Arena Football League v. Professional Indoor Football League ) established that the patent specifically covered the rebound net feature, meaning that competitors could not use this aspect of the rules. However, under provisions of U.S. patent law , Foster's patent expired on March 27, 2007, enabling competitors to use rebound nets (at least as originally envisioned, without other innovations that he may have patented). The AFL signed

10208-680: The playoffs during their final two seasons but first-round losses to the Tennessee Valley Vipers and the Florida Firecats (respectively) contributed to the disbanding of the franchise after the 2002 season. The team's mascot was the Thunder King, a big fuzzy brown lion who has found other work since the dissolution. After the dissolution of the Thunder, Tallahassee would be without an arena or indoor football team until they were granted

10324-498: The present location of Jackson Park . The Exposition drew 27.5 million visitors, and is considered the most influential world's fair in history. The University of Chicago , formerly at another location, moved to the same South Side location in 1892. The term "midway" for a fair or carnival referred originally to the Midway Plaisance , a strip of park land that still runs through the University of Chicago campus and connects

10440-593: The problem of sewage contamination was largely resolved when the city completed a major engineering feat. It reversed the flow of the Chicago River so that the water flowed away from Lake Michigan rather than into it. This project began with the construction and improvement of the Illinois and Michigan Canal, and was completed with the Chicago Sanitary and Ship Canal that connects to the Illinois River , which flows into

10556-612: The rebound nets at the ends of the field. Like the AFL, their playing seasons are entirely or primarily outside the traditional fall/early winter season of the outdoor sport so as not to be competing with it directly for fan support. Since the first such league, the Professional Indoor Football League, began play in the 1998, there has often been a pattern of instability. Each off-season has seen teams jumping from league to league. In addition, leagues have annually merged, changed names, and separated. The organization that

10672-540: The rebound nets were the only part of the patent that was upheld until it expired. As a result, some non-AFL arena leagues that formed after the patent expired like the National Arena League have used rebound nets, while other leagues such as the Indoor Football League and American Indoor Football opt to not use them. The first demonstration of football on a small field was actually played outdoors at

10788-584: The runways. After successfully running for re-election five times, and becoming Chicago's longest-serving mayor, Richard M. Daley declined to run for a seventh term. In 1992, a construction accident near the Kinzie Street Bridge produced a breach connecting the Chicago River to a tunnel below, which was part of an abandoned freight tunnel system extending throughout the downtown Loop district. The tunnels filled with 250 million US gallons (1,000,000 m ) of water, affecting buildings throughout

10904-596: The said place called "Chicagou" which, according to what we were able to learn of it, has taken this name because of the quantity of garlic which grows in the forests in this region. The city has had several nicknames throughout its history, such as the Windy City , Chi-Town, Second City, and City of the Big Shoulders. In the mid-18th century, the area was inhabited by the Potawatomi , an indigenous tribe who had succeeded

11020-413: The scope of its patent allowed for competing indoor football leagues (sometimes known as arena leagues ) to use the same size field and most other aspects of the game. Arena football is distinguished from the other indoor leagues by its use of large rebound nets attached to the side of each goalpost, which keep any missed field goal or overthrown ball in the field of play and allow the ball to remain live;

11136-486: The shore of Lake Michigan , Chicago was incorporated as a city in 1837 near a portage between the Great Lakes and the Mississippi River watershed . It grew rapidly in the mid-19th century. In 1871, the Great Chicago Fire destroyed several square miles and left more than 100,000 homeless, but Chicago's population continued to grow. Chicago made noted contributions to urban planning and architecture , such as

11252-402: The sidelines unless he is pushed into or falls over the sideline barrier. This rule was put in place before the 2006 season. Before that time, a sideline with only a small amount of space (typically 6" to 12") existed between the sideline stripe and the barrier which would provide the space for a ball carrier to step out of bounds before hitting the sideline barrier. Each team fields 8 players at

11368-416: The sprawling Coliseum is believed to have not needed any compromises to accommodate an American football field. According to a newspaper account, the field grew dark in the second half, and play was halted for ten minutes to discuss whether play should continue. Play was resumed, and the lights were finally turned on after Michigan scored a touchdown. The press proclaimed the experiment in indoor football to be

11484-421: The stadium. A dirt and tanbark field measuring 80 yards long (60 yards plus two ten-yard end zones ) and 45 yards wide was constructed on the arena's floor. The Chicago Stadium games were notable for introducing several rule changes, including the introduction of hash marks to keep play away from spectators who were seated next to the field (much like modern indoor football), while goal posts were moved to

11600-570: The steel industry in Chicago, but the steel crisis of the 1970s and 1980s reduced this number to just 28,000 in 2015. In 1966, Martin Luther King Jr. and Albert Raby led the Chicago Freedom Movement , which culminated in agreements between Mayor Richard J. Daley and the movement leaders. Two years later, the city hosted the tumultuous 1968 Democratic National Convention , which featured physical confrontations both inside and outside

11716-430: The teams made a sustainable profit and the team owners were eager to see the league continue for another year. However, with the AFL owning 50.1% of the af2, it would fold if the AFL folded. At the end of the 2009 season, a gathering of af2 and remaining AFL team owners set out to form their own organization, originally known as Arena Football 1 (AF1). AF1 went on to purchase all assets of the original AFL and af2, except for

11832-618: The tournament being discontinued after two years. The Chicago Bears of the National Football League hosted an experimental game against their crosstown rivals, the Cardinals , after the 1930 NFL season , at the indoor Chicago Stadium . Two years later, poor weather conditions led to the Bears hosting the 1932 NFL Playoff Game against the Portsmouth Spartans (now the Detroit Lions ) at

11948-551: The unemployed. In the spring of 1937 Republic Steel Works witnessed the Memorial Day massacre of 1937 in the neighborhood of East Side. In 1933, Chicago Mayor Anton Cermak was fatally wounded in Miami, Florida , during a failed assassination attempt on President-elect Franklin D. Roosevelt . In 1933 and 1934, the city celebrated its centennial by hosting the Century of Progress International Exposition World's Fair . The theme of

12064-625: The visual arts, literature , film, theater , comedy (especially improvisational comedy ), food , dance, and music (particularly jazz , blues , soul , hip-hop , gospel , and electronic dance music , including house music ). Chicago is home to the Chicago Symphony Orchestra and the Lyric Opera of Chicago , while the Art Institute of Chicago provides an influential visual arts museum and art school . The Chicago area also hosts

12180-644: The waterfront. Landfill extends into portions of the lake providing space for Navy Pier , Northerly Island , the Museum Campus , and large portions of the McCormick Place Convention Center. Most of the city's high-rise commercial and residential buildings are close to the waterfront. An informal name for the entire Chicago metropolitan area is "Chicagoland", which generally means the city and all its suburbs, though different organizations have slightly different definitions. Major sections of

12296-525: The world's first skyscraper in 1885, using steel-skeleton construction. The city grew significantly in size and population by incorporating many neighboring townships between 1851 and 1920, with the largest annexation happening in 1889, with five townships joining the city, including the Hyde Park Township , which now comprises most of the South Side of Chicago and the far southeast of Chicago, and

12412-431: Was John H. Rauch, M.D. Rauch established a plan for Chicago's park system in 1866. He created Lincoln Park by closing a cemetery filled with shallow graves, and in 1867, in response to an outbreak of cholera he helped establish a new Chicago Board of Health. Ten years later, he became the secretary and then the president of the first Illinois State Board of Health, which carried out most of its activities in Chicago. In

12528-467: Was called the Society for Human Rights . It produced the first American publication for homosexuals, Friendship and Freedom . Police and political pressure caused the organization to disband. The Great Depression brought unprecedented suffering to Chicago, in no small part due to the city's heavy reliance on heavy industry. Notably, industrial areas on the south side and neighborhoods lining both branches of

12644-405: Was especially important as the 2007 expiration of Foster's patent on the rebound nets approached). At times over forty teams participated in this league, almost uniformly in cities which also had minor league ice hockey teams and hence suitable arenas. Shortly before the end of 2008, the Arena Football League announced that it would not be playing a 2009 spring season. During the previous few years,

12760-462: Was founded in 1837, most of the early building was around the mouth of the Chicago River, as can be seen on a map of the city's original 58 blocks. The overall grade of the city's central, built-up areas is relatively consistent with the natural flatness of its overall natural geography, generally exhibiting only slight differentiation otherwise. The average land elevation is 579 ft (176.5 m) above sea level . While measurements vary somewhat,

12876-566: Was held in a purpose-built auditorium called the Wigwam . He defeated Douglas in the general election, and this set the stage for the American Civil War . To accommodate rapid population growth and demand for better sanitation, the city improved its infrastructure. In February 1856, Chicago's Common Council approved Chesbrough 's plan to build the United States' first comprehensive sewerage system. The project raised much of central Chicago to

12992-434: Was in part to justify salary cuts that were required when a previous commissioner—Lee Hutton, who was ousted in the reorganization —made promises to cover higher salaries but had no revenue to fund such promises (since under ironman, a player would fill the roles of what would have otherwise been two roster spots, justifying their higher price compared to a one-way player in other indoor leagues). The league also instituted

13108-521: Was incorporated on Saturday, March 4, 1837, and for several decades was the world's fastest-growing city. As the site of the Chicago Portage , the city became an important transportation hub between the eastern and western United States. Chicago's first railway, Galena and Chicago Union Railroad , and the Illinois and Michigan Canal opened in 1848. The canal allowed steamboats and sailing ships on

13224-455: Was repealed. The 1920s saw gangsters , including Al Capone , Dion O'Banion , Bugs Moran and Tony Accardo battle law enforcement and each other on the streets of Chicago during the Prohibition era . Chicago was the location of the infamous St. Valentine's Day Massacre in 1929, when Al Capone sent men to gun down members of a rival gang, North Side, led by Bugs Moran. From 1920 to 1921,

13340-469: Was resolved by 1933, and at the same time, federal relief funding began to flow into Chicago. Chicago was also a hotbed of labor activism, with Unemployed Councils contributing heavily in the early depression to create solidarity for the poor and demand relief; these organizations were created by socialist and communist groups. By 1935 the Workers Alliance of America begun organizing the poor, workers,

13456-455: Was that free substitution would improve the overall quality of football in the league by giving coaches the freedom to put their best players on the field for every play of the game, and that teams would be able to select from a wider player talent pool when building their rosters. Traditionalists, however, believed the rule changes were the beginning of the removal of the " ironman " (two-way offense and defense) style of play of arena football that

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