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74-802: CME Group Inc. is a financial services company. Headquartered in Chicago , the company operates financial derivatives exchanges including the Chicago Mercantile Exchange , Chicago Board of Trade , New York Mercantile Exchange , and The Commodity Exchange. The company also owns 27% of S&P Dow Jones Indices . It is the world's largest operator of financial derivatives exchanges. Its exchanges are platforms for trading in agricultural products, currencies , energy, interest rates , metals, futures contracts , options , stock indexes , and cryptocurrencies futures. In addition to its headquarters in Chicago,

148-585: A 24.4% ownership interest and Dow Jones & Company receiving a 2.6% ownership interest in the joint venture. In April 2013, CME Group purchased the remaining Dow Jones & Company interest for $ 80.0 million, increasing CME Group's interest in S&;P Dow Jones Indices from 24.4% to 27.0%. On December 3, 2012, CME Group acquired the Kansas City Board of Trade , the dominant venue for the sale of hard red winter wheat , for $ 126 million in cash. On March 15, 2016,

222-503: A CCP may increase initial margin requirements in response to high price volatility. Variation margin is the second line of defense against fluctuation in the prices of securities pledged as collateral. If those prices fall, the member must deposit a corresponding amount of cash, and if those prices go up, the member may withdraw a corresponding amount of cash. This is done either on a daily basis or sometimes more frequently. For some financial products, members’ net payment obligations to or from

296-403: 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

370-579: A clearinghouse. In June 2009, Federal Reserve official Alfred Kohn mentioned that the largest CDS dealers were working on an exchange, and that only regulatory approval rather than legislation would be required. In March 2010, the Options Clearing Corporation (OCC) stated that it was moving forward in backing equity derivatives. In Europe, the European Market Infrastructure Regulation mandated central clearing. It

444-600: A counterparty to every cleared transaction, including both listed and OTC derivatives, within the company's marketplace. CME Group is a member of CCP Global , a trade group of central counterparty clearinghouses from around the globe. CME Group's history of member-owned exchanges and mergers and acquisition of rivals have led to an unconventionally large board size for a publicly traded company. In 2018, six of its 20 sitting board directors were elected by holders of Class B shares, representing owners of exchange seats, as opposed to that of publicly traded Class A shares. In comparison,

518-414: A defaulting broker. The guarantee fund ensures that settlement can be completed. A defaulting member's contribution to the fund, along with any other assets held by the depository, are used to absorb any losses at the time of default. The options market, with its Options Clearing Corporation (OCC), also acts as a central clearing counterparty. Its rules stipulate a five-step "waterfall" in dealing with

592-486: 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

666-465: A market participant, it also needs to be properly managed and well-capitalized in order to ensure its survival in the event of a significant adverse event, such as a large clearing firm defaulting. Guarantee funds are capitalized with collateral from the member firms and own capital, called 'skin-in-the-game' of the CCP. In the event of a settlement failure, the defaulting firm may be declared to be in default and

740-647: A member's default: In order to assess the viability of its funds, the OCC carries out a firm-wide default test annually. In addition, the firm performs smaller, limited scope defaults throughout the year. Results are reported to its Enterprise Risk Management Committee. LCH.Clearnet , the result of a merger between the London Clearing House and Clearnet, acts as a CCP for a wide variety of financial products, from equities and commodities to credit default swaps and interest rate swaps . Asian countries have addressed

814-610: 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

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888-472: 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,

962-399: A significant cause of the event was the use of spoofing algorithms by Navinder Singh Sarao, a British financial trader; just prior to the flash crash, he placed orders for thousands of E-mini S&P 500 stock index futures contracts — which traded on CME Group's Globex platform — and later replaced or modified those orders at least 19,000 times before they were cancelled. The event led to

1036-691: A trade association representing them called CCP Global. In the wake of the financial crisis of 2007–08 the G20 leaders agreed at the 2009 Pittsburgh summit that all standardised derivatives contracts should be traded on exchanges or electronic trading platforms and cleared through central counterparties (CCPs). In the United States, as part of the Obama financial regulatory reform plan of 2009 , pressure has been placed on traders of derivatives such as credit default swaps (CDS) to make their trades on an open exchange with

1110-687: Is estimated that almost half of all outstanding interest rate swap transactions are centrally cleared. The systemic importance of CCPs is expected to increase further as the central clearing of standardized over-the-counter (OTC) derivatives becomes mandatory in line with commitments made by G20 leaders following the crisis. The Financial Stability Board reported in April 2013 that, as at the end of February 2013, around US$ 158 trillion of interest rate swaps and over US$ 2.6 trillion of OTC credit derivatives were centrally cleared, representing 41% and 12% respectively of total outstanding notional amounts. DTCC's subsidiary

1184-407: 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

1258-401: Is submitted to a clearing house, which then steps between the two original traders' clearing firms and assumes the legal counterparty risk for the trade. For example, a trade between member firm A and firm B becomes two trades: A-CCP and CCP-B. This process is called novation . As the CCP concentrates the risk of settlement failures into itself and is able to isolate the effects of a failure of

1332-418: 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 the shore of Lake Michigan , Chicago was incorporated as a city in 1837 near a portage between

1406-473: 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

1480-699: 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

1554-688: 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 the Chicago School , the development of the City Beautiful movement , and

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1628-527: 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

1702-525: 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

1776-503: 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

1850-578: 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

1924-803: 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

1998-463: 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

2072-663: 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

2146-490: 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

2220-477: 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

2294-747: 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

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2368-400: The CCP are settled on a daily basis (or more frequently if there are large movements during the course of the day) to prevent the build-up of large exposures. The advantages of a central counterparty clearing arrangement are greater transparency of the risks, reduced processing costs, and greater certainty in cases of default by a member. Once a trade has been executed by two counterparties, it

2442-407: The CCP's default procedures utilized, which may include the orderly liquidation of the defaulting firm's positions and collateral. In the event of a significant clearing firm failure, the CCP may draw on its guarantee fund in order to settle trades on behalf of the failed clearing firm. Nonetheless, it is possible that, in extreme circumstances, CCPs could be a source of systemic risk . CCPs have

2516-455: 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

2590-527: 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

2664-672: The NYMEX exchange and the Commodity Exchange (COMEX), for $ 8.9 billion in cash and CME Group stock. On February 10, 2010, CME Group agreed to purchase 90% of Dow Jones & Company's financial-indexes business, including the Dow Jones Industrial Average . CME Group and Dow Jones & Company subsequently contributed the Dow Jones Indexes to the formation of S&P Dow Jones Indices joint venture, with CME Group receiving

2738-505: The National Securities Clearing Corporation (NSCC) clears broker-to-broker trades using its Continuous Net Settlement (CNS) System. This has acted as a CCP, long before the term was coined. In order to deal with the default of a member broker, as happened with Drexel Burnham and Lehman Brothers , DTCC has a guarantee fund to which all broker members contribute. It also has rules to handle the gains and losses from

2812-562: 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 ,

2886-553: 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

2960-775: 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

3034-458: The average company in the S&;P 500 had no more than 11 board directors. On August 23, 2018, the company offered holders of Class B shares about $ 10 million to relinquish control of their six board seats. The move was subsequently rejected. CME Group was at the center of the 2010 flash crash , which took place on May 6, 2010. According to a Commodity Futures Trading Commission (CFTC) 2014 report,

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3108-553: 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

3182-529: 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,

3256-415: 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

3330-424: 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

3404-562: The city, encompassing roughly 60% of the city's land area. The South Side contains most of the facilities of the Port of Chicago . CCP Global CCPs "mutualize" (share among their members) counterparty credit risk in the markets in which they operate. A CCP reduces the settlement risks by netting offsetting transactions between multiple counterparties, by requiring collateral deposits (also called " margin deposits"), by providing independent valuation of trades and collateral, by monitoring

3478-511: The company also has offices in New York, Houston, and Washington D.C., in the U.S., as well as abroad in Bangalore, Beijing, Belfast, Calgary, Hong Kong, London, Seoul, Singapore, and Tokyo. The Chicago Mercantile Exchange (CME), was founded in 1898 as a nonprofit corporation . In 1919, it established its clearing house. In 2000, CME demutualized (became a joint stock company). In 2002, CME Group,

3552-578: The company's CEO. In November 2016, Gill retired from his role and Terrence A. Duffy , then executive chairman and president of the company, took on an expanded role as its CEO. In 2021, the firm struck a partnership with Google to build its cloud strategy, which saw the tech giant investing $ 1 billion in CME Group. In 2022, CME Group futures and options reached a record average daily volume of 23.3 million contracts. On August 22, 2008, CME Group acquired New York Mercantile Exchange (NYMEX), owner of both

3626-515: 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 ,

3700-495: The creditworthiness of the member firms, and in many cases, by providing a guarantee fund that can be used to cover losses that exceed a defaulting member's collateral on deposit. CCPs require a pre-set amount of collateral — referred to as ‘initial margin’ — to be posted to the CCP by each party in a transaction. The first line of defense is collateral provided by the defaulting member. CCPs typically adjust initial margin demands in response to changes in market conditions. For instance,

3774-479: 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 ,

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3848-526: 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

3922-986: The firm announced the sale of its suburban Chicago data center in Aurora, IL to CyrusOne for $ 130 million, in a leaseback transaction. On November 2, 2018, CME Group acquired the London-based NEX Group for $ 5.5 billion. CME Group operates a global derivatives marketplace that allows institutions and individuals to trade futures and options based on interest rates, equity indexes, foreign exchange, energy, metals, and agricultural commodities. The company runs an electronic trading platform, CME Globex , which allows customers in approximately 150 countries to trade futures and options contracts. The company also operates two cash market businesses: BrokerTec, which facilitates dealer-to-dealer trading for fixed-income markets, and EBS, which provides foreign exchange spot trading. In addition, CME Group operates CME Clearing, which serves as

3996-451: 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

4070-512: The modern day implementation of coordinated cross-market circuit breakers , as the CME's Globex platform halted trading in an automated response to the activity, while the New York Stock Exchange did not. Chicago Chicago 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

4144-520: The parent company of CME, became a public company via an initial public offering . On July 12, 2007, CME Group completed a merger with the CME's historical rival, the holding company for the Chicago Board of Trade , founded in 1848, in an $ 8 billion deal that created the world's largest financial market. The company then launched as CME Group Inc., a CME/Chicago Board of Trade Company. In 2012, Phupinder Gill, then CME Group's president and COO, became

4218-498: 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

4292-593: 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

4366-462: 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

4440-584: 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

4514-596: 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

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4588-570: 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

4662-453: 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 is routinely ranked among the world's top six busiest airports by passenger traffic , and

4736-551: 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

4810-625: 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

4884-644: 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

4958-413: 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

5032-431: 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

5106-418: 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

5180-462: 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,

5254-458: 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

5328-521: 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

5402-455: 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,

5476-469: 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,

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