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95-491: The LXXXIX Army Corps , also referred to in writing as 'Roman 89th Army Corps' (German: röm. 89. AK ) in script to avoid confusion with the Roman numerals , was formed under the name Generalkommando Y on 2 August 1942 in occupied France . The corps was initially attached to 15th Army ( Haase ) under Army Group D ( von Rundstedt ). It was subsequently renamed Generalkommando Schelde on 9 August 1942, before eventually receiving

190-400: A duodecimal rather than a decimal system for fractions , as the divisibility of twelve (12 = 2 × 3) makes it easier to handle the common fractions of 1 ⁄ 3 and 1 ⁄ 4 than does a system based on ten (10 = 2 × 5) . Notation for fractions other than 1 ⁄ 2 is mainly found on surviving Roman coins , many of which had values that were duodecimal fractions of

285-649: A numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages . Numbers are written with combinations of letters from the Latin alphabet , each with a fixed integer value. The modern style uses only these seven: The use of Roman numerals continued long after the decline of the Roman Empire . From the 14th century on, Roman numerals began to be replaced by Arabic numerals ; however, this process

380-662: A SW-NE direction far beyond the Rhine valley. Since that folding, the Eifel has largely remained part of the mainland. During the Permian , after the end of the uplifting, the Variscan mountains were heavily eroded, leaving only a relatively flat, truncated upland. For a short time, and only partially, this was later flooded by the sea. Depositions from the Triassic and Jurassic periods have survived in

475-456: A box or circle. Thus, 500 was like a Ɔ superimposed on a ⋌ or ⊢ , making it look like Þ . It became D or Ð by the time of Augustus, under the graphic influence of the letter D . It was later identified as the letter D ; an alternative symbol for "thousand" was a CIↃ , and half of a thousand or "five hundred" is the right half of the symbol, IↃ , and this may have been converted into D . The notation for 1000

570-456: A chain from northwest to southeast. The youngest maars are only slightly older than 11,000  years. In the eastern Eifel, volcanism began about 500,000 years ago in the area of today's Laacher See; it extended to the Neuwied Basin to the south, and crossed the Rhine to the east. The quantity of basalt lavas, pumice tuffs and ash tuffs produced by the volcanoes was far greater here than in

665-535: A common one that persisted for centuries ) is the inconsistent use of subtractive notation - while XL is used for 40, IV is avoided in favour of IIII : in fact, gate 44 is labelled XLIIII . Eifel The Eifel ( German: [ˈaɪfl̩] ; Luxembourgish : Äifel , pronounced [ˈæːɪfəl] ) is a low mountain range in western Germany , eastern Belgium and northern Luxembourg . It occupies parts of southwestern North Rhine-Westphalia , northwestern Rhineland-Palatinate and

760-486: A distinctly stimulating climate; the high elevations being considered as highly stimulating. The Eifel is a clean air area with very low air-chemical pollution. On hot sunny days, there is sometimes an increased concentration of ground-level ozone. Here are a couple of weather station examples for settlements in the Eifel. At the time of the Roman Empire the whole mountain range between the rivers Rhine, Meuse and Moselle

855-634: A futile attempt to push back against the Moselle bridgehead established by XII Corps and to hold open a retreat route towards the Rhine river . In heavy fighting until the 17 March 1945, the LXXXIX Army Corps was split in half by an armored thrust by XII Corps, as the 559th Volksgrenadier Division was rushed in by Hausser to assist the sector. Having accepted that the forces west of the American breakthrough were lost,

950-557: A line along the French coast together with the LXXXII , LXXXXI , LXVII and LXXXI corps. As Allied armies were advancing through France, LXXXIX Army Corps took the far right flank of 15th Army, which was in turn on the far right of the German lines, to the right of the 1st Parachute Army . At 15 September 1944, it stood south of Breskens , to the right of LXXXVI Army Corps , which was also part of

1045-435: A number, as in U.S. Copyright law (where an "incorrect" or ambiguous numeral may invalidate a copyright claim or affect the termination date of the copyright period). The following table displays how Roman numerals are usually written: The numerals for 4 ( IV ) and 9 ( IX ) are written using subtractive notation , where the smaller symbol ( I ) is subtracted from the larger one ( V , or X ), thus avoiding

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1140-587: A practice that goes back to very early clocks such as the Wells Cathedral clock of the late 14th century. However, this is far from universal: for example, the clock on the Palace of Westminster tower (commonly known as Big Ben ) uses a subtractive IV for 4 o'clock. Several monumental inscriptions created in the early 20th century use variant forms for "1900" (usually written MCM ). These vary from MDCCCCX for 1910 as seen on Admiralty Arch , London, to

1235-539: A table of epacts , all written in Roman numerals. The use of N to indicate "none" long survived in the historic apothecaries' system of measurement: used well into the 20th century to designate quantities in pharmaceutical prescriptions. In later times, the Arabic numeral "0" has been used as a zero to open enumerations with Roman numbers. Examples include the 24-hour Shepherd Gate Clock from 1852 and tarot packs such as

1330-419: Is an average of 70 days of full snow cover because the frequency of snow at higher elevations is relatively high (for comparison: Bitburg 35  days, Maifeld 30  days), but the level of snowfall varies from year to year. Snow heights vary on average between 15 cm and 60 cm. The humid Atlantic climate can cause extreme variations though: on 2 March 1987 there was 227 centimetres of snow in

1425-553: Is closely associated with the ancient city-state of Rome and the Empire that it created. However, due to the scarcity of surviving examples, the origins of the system are obscure and there are several competing theories, all largely conjectural. Rome was founded sometime between 850 and 750 BC. At the time, the region was inhabited by diverse populations of which the Etruscans were the most advanced. The ancient Romans themselves admitted that

1520-575: Is now regarded as the standard work on the geology of the Eifel. The Eifel and its western continuation into Belgium, the Ardennes , are the remains of a Variscan truncated upland , much of it 400 million years old, that is part of the Rhenish Massif ( Rheinisches Schiefergebirge ). In the area of the Stavelot-Venn Saddle ( Hohes Venn ) are the oldest layers of rock, which originate from

1615-578: Is omitted, as in Latin (and English) speech: The largest number that can be represented in this manner is 3,999 ( MMMCMXCIX ), but this is sufficient for the values for which Roman numerals are commonly used today, such as year numbers: Prior to the introduction of Arabic numerals in the West, ancient and medieval users of Roman numerals used various means to write larger numbers (see § Large numbers below) . Forms exist that vary in one way or another from

1710-457: Is reduced to ↀ , IↃↃ (5,000) to ↁ ; CCIↃↃ (10,000) to ↂ ; IↃↃↃ (50,000) to ↇ ; and CCCIↃↃↃ (100,000) to ↈ . It is likely IↃ (500) reduced to D and CIↃ (1000) influenced the later M . John Wallis is often credited with introducing the symbol for infinity ⟨∞⟩ , and one conjecture is that he based it on ↀ , since 1,000 was hyperbolically used to represent very large numbers. Using

1805-413: Is subtracted from 1). The word nulla (the Latin word meaning "none") was used to represent 0, although the earliest attested instances are medieval. For instance Dionysius Exiguus used nulla alongside Roman numerals in a manuscript from 525 AD. About 725, Bede or one of his colleagues used the letter N , the initial of nulla or of nihil (the Latin word for "nothing") for 0, in

1900-559: Is that the word for 18 in Latin is duodeviginti ‍ —   literally "two from twenty"⁠—   while 98 is duodecentum (two from hundred) and 99 is undecentum (one from hundred). However, the explanation does not seem to apply to IIIXX and IIIC , since the Latin words for 17 and 97 were septendecim (seven ten) and nonaginta septem (ninety seven), respectively. The ROMAN() function in Microsoft Excel supports multiple subtraction modes depending on

1995-440: Is unknown which symbol represents which number). As in the basic Roman system, the Etruscans wrote the symbols that added to the desired number, from higher to lower value. Thus, the number 87, for example, would be written 50 + 10 + 10 + 10 + 5 + 1 + 1 = 𐌣𐌢𐌢𐌢𐌡𐌠𐌠 (this would appear as 𐌠𐌠𐌡𐌢𐌢𐌢𐌣 since Etruscan was written from right to left.) The symbols ⟨𐌠⟩ and ⟨𐌡⟩ resembled letters of

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2090-655: Is west/southwest. A relatively dry and milder climate prevails in the wind and rain shadow of the High Eifel. Cold air from Siberia in the higher elevations of the Eifel has less of an impact on weather conditions, as the proximity of the Atlantic Ocean to the Eifel brings milder sea air to the Eifel even in winter. Looking at the long-term averages, even the Snow Eifel only has snow cover for nine consecutive days in winter, as there are no longer lasting cold spells. However, there

2185-674: The vinculum , conventional Roman numerals are multiplied by 1,000 by adding a "bar" or "overline", thus: The vinculum came into use in the late Republic , and it was a common alternative to the apostrophic ↀ during the Imperial era around the Roman world (M for '1000' was not in use until the Medieval period). It continued in use in the Middle Ages, though it became known more commonly as titulus , and it appears in modern editions of classical and medieval Latin texts. In an extension of

2280-518: The C s and Ↄ s as parentheses) had its origins in Etruscan numeral usage. Each additional set of C and Ↄ surrounding CIↃ raises the value by a factor of ten: CCIↃↃ represents 10,000 and CCCIↃↃↃ represents 100,000. Similarly, each additional Ↄ to the right of IↃ raises the value by a factor of ten: IↃↃ represents 5,000 and IↃↃↃ represents 50,000. Numerals larger than CCCIↃↃↃ do not occur. Sometimes CIↃ (1000)

2375-459: The vinculum , a three-sided box (now sometimes printed as two vertical lines and a vinculum ) is used to multiply by 100,000, thus: Vinculum notation is distinct from the custom of adding an overline to a numeral simply to indicate that it is a number. Both usages can be seen on Roman inscriptions of the same period and general location, such as on the Antonine Wall . The system

2470-523: The 276th Infantry Division , which had escaped from the Eifel region. The 6th SS Mountain Division ( Brenner ) was nominally assigned to LXXXIX Army Corps by Hausser, but only parts of it reached the corps in time before the sector of LXXXIX Army Corps fell under heavy American attack. On 12 March 1945, the U.S. Third Army ( Patton ) began its attack against Army Group G. The American XX Corps ( Walker ) bound

2565-604: The Cambrian and are around 550 million years old. The Eifel is one of the few volcanically active areas of Germany, as is evinced by numerous discharges of carbonic acid , for example into the Laacher See . The last eruptions, which gave rise to the most recent maars , occurred about 11,000  years ago. The basement in the Eifel, as in the other regions of the Rhenish Massif , consists mainly of Devonian slates , sandstones and limestones , laid down in an ocean south of

2660-782: The German Wildlife Route and the South Eifel Holiday Route. Due to its moist and mild Atlantic climate, the Eifel is bisected by numerous streams and small rivers. Impoundment of these streams, especially in the North Eifel has led to the creation of very large reservoir , such as the Rursee , which is the second largest in Germany by volume, and the Urftsee . A feature of the Eifel are its natural lakes of volcanic origin. The largest,

2755-621: The Handbook of the Natural Region Divisions of Germany , divided into three major unit (i.e. two-digit) groups and these were subdivided into (three-digit) major natural units. These divisions were subsequently refined in the individual map sheets Trier/Mettendorf , Cochem (both 1974) and Cologne/Aachen (1978) as follows; for the most detailed natural region divisions in Rhineland-Palatinate, fact files were produced by

2850-551: The Laacher See , is a collapsed, water-filled caldera , whilst the many maars are water-filled volcanic eruption bowls. The largest maar lake is the Pulvermaar . The Meerfelder Maar has an even bigger basin, but three-quarters of it has silted up. The many rivers and streams of the Eifel drain into the North Sea via the great rivers outside of the Eifel: the Rhine (and its tributary,

2945-566: The Moselle ) and the Meuse (with its tributaries, the Rur and Ourthe ). The rivers and streams within the mountain range, together with their larger tributaries, are as follows: Rhine tributaries: Meuse tributaries: Reservoirs Volcanic lakes Despite the interesting geology of the Eifel region, only three comprehensive geological accounts have been produced. In 1822, Johann Steiniger published

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3040-586: The Old Red Continent and folded and overthrust in the Variscan orogeny. Only on the northern edge of the Eifel, in the High Fens and its environs, do older rocks from the Cambrian and Ordovician outcrop. Rocks of the Carboniferous do not occur in the Eifel itself, but lie along its northern boundary in the region of Aachen . The Devonian rocks were deposited in an oceanic basin , in which erosion debris

3135-714: The Schwarzer Mann in the Schnee-Eifel , stand out from a long way off as long, forested ridges or clearly isolated mountaintops. The highest mountain in the whole Eifel is the Hohe Acht at 746.9 m. It is the only Eifel summit above 700 m. However, many peaks, mountain ridges and large regions, such as the Zitterwald reach heights of over 600 m. These include two dozen peaks with good all-round views, of which many have an observation tower . From north to south they are:

3230-451: The diphthong and the syllable , -fel . The resulting root form Anfil or Anfali would then mean an "area that is not so level". An - would then be a prefix and -fali , which is related to the Slavic polje ("field"), means "plain" or "heath". W. Kaspers (1938) deduces from the surviving form in pago aquilinse the root form aku-ella, akwella and points to its development into

3325-590: The " Form " setting. For example, the number "499" (usually CDXCIX ) can be rendered as LDVLIV , XDIX , VDIV or ID . The relevant Microsoft help page offers no explanation for this function other than to describe its output as "more concise". There are also historical examples of other additive and multiplicative forms, and forms which seem to reflect spoken phrases. Some of these variants may have been regarded as errors even by contemporaries. As Roman numerals are composed of ordinary alphabetic characters, there may sometimes be confusion with other uses of

3420-454: The 15th Army. By early November 1944, the LXXXIX Army Corps had been transferred from the 15th Army to the 1st Army under Army Group G ( Hausser ). In late December 1944, LXXXIX Army Corps was reinforced by most of the personnel of Division Rässler . Beginning in January 1945, the LXXXIX Army Corps was also called Group Höhne (German: Gruppe Höhne ). In March 1945, the LXXXIX Army Corps

3515-547: The 15th-century Sola Busca and the 20th century Rider–Waite packs. The base "Roman fraction" is S , indicating 1 ⁄ 2 . The use of S (as in VIIS to indicate 7 1 ⁄ 2 ) is attested in some ancient inscriptions and also in the now rare apothecaries' system (usually in the form SS ): but while Roman numerals for whole numbers are essentially decimal , S does not correspond to 5 ⁄ 10 , as one might expect, but 6 ⁄ 12 . The Romans used

3610-508: The 6th SS Mountain Division attempted to infiltrate back into German-controlled territory, but the remainders of the division were pinned down and 800 survivors forced to surrender on 2 April 1945. 500 members of the 6th SS Mountain Division had been killed during the last few days. Their American counterparts were partially spurred on by false rumors that the members of the 6th SS Mountain Division had murdered and raped staff members of an American military hospital from which they had stolen fuel in

3705-584: The 6th SS Mountain Division had been called away by Albert Kesselring , the commanding general of Army Group D and thus Supreme Commander of the Wehrmacht forces in the West , towards Wiesbaden , weakening the defensive position of LXXXIX Army Corps east of the Rhine even further, just before the U.S. VIII Corps ( Middleton ) crossed the Rhine Gorge into the sector defended by LXXXIX Army Corps. The total collapse of LXXXIX Army Corps began on 27 March 1945, when

3800-506: The Earth's surface from the upper regions of the Earth's mantle or, in the majority of cases, gathers in a magma chamber, several tens of kilometres deep, at the base of the Earth's crust , from which magma rises at irregular intervals and causes volcanic eruptions. Volcanism in the Eifel is thought to be partly caused by the Eifel hotspot , a place where hot material from deep in the mantle rises to

3895-477: The Eifel on the Weißer Stein . The mean temperature in the coldest month (January) is -1.5 °C at high elevations, +1.5 to 2 °C in the mountain foreland. There is an average of 110 days of frost, with temperatures below 0 °C in the highlands and an average of 30 to 40 'ice days' when temperatures do not rise above 0 °C. The warmest month (July) only has an average temperature of 14 °C in

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3990-589: The Etruscan alphabet, but ⟨𐌢⟩ , ⟨𐌣⟩ , and ⟨𐌟⟩ did not. The Etruscans used the subtractive notation, too, but not like the Romans. They wrote 17, 18, and 19 as 𐌠𐌠𐌠𐌢𐌢, 𐌠𐌠𐌢𐌢, and 𐌠𐌢𐌢, mirroring the way they spoke those numbers ("three from twenty", etc.); and similarly for 27, 28, 29, 37, 38, etc. However, they did not write 𐌠𐌡 for 4 (nor 𐌢𐌣 for 40), and wrote 𐌡𐌠𐌠, 𐌡𐌠𐌠𐌠 and 𐌡𐌠𐌠𐌠𐌠 for 7, 8, and 9, respectively. The early Roman numerals for 1, 10, and 100 were

4085-446: The Etruscan ones: ⟨𐌠⟩ , ⟨𐌢⟩ , and ⟨𐌟⟩ . The symbols for 5 and 50 changed from ⟨𐌡⟩ and ⟨𐌣⟩ to ⟨V⟩ and ⟨ↆ⟩ at some point. The latter had flattened to ⟨⊥⟩ (an inverted T) by the time of Augustus , and soon afterwards became identified with the graphically similar letter ⟨ L ⟩ . The symbol for 100

4180-564: The High Eifel came to an end about 15 to 20 million years ago, at the same time as that of the Siebengebirge. Volcanism in the western and eastern Eifel is, in contrast to that of the High Eifel, much more recent than that of the Siebengebirge and Westerwald. It began in the West Eifel region of Daun, Hillesheim and Gerolstein about 700,000 years ago and created a chain of ash volcanoes, cinder cones , maars and craters running in

4275-501: The Koblenz urban area on the west bank to make a last stand. The troops that arrived on the east bank of the Rhine as part of the retreat by LXXXIX Army Corps numbered around 1,700. They were helped in their retreat by a lack of American activity; the 4th Armored Division ( Gaffey ), part of XII Corps, had paused to regroup after establishing a bridgehead across the Nahe river . By 25 March 1945,

4370-466: The LXXXIX Army Corps disintegrated. Its personnel did not serve another purpose until the German surrender on 8 May 1945. In the meantime, the remainders of the 6th SS Mountain Division, numbering some 2,000 troops, took to setting up roadblocks on the motorways they attempted to defend, in spite of the fact that several American contingents had already passed them by on either side. Starting on 30 March 1945,

4465-903: The Michelsberg, Häuschen and Teufelsley in the north; the Adert, Hohe Acht and Raßberg in the northeast; the Hochkel, Nerotherkopf, Dietzenley and ruins of the Kasselburg in the central area; the Prümer Kalvarienberg, Hartkopf and Prümer Kopf in the east, the Steineberg and Mäuseberg near Daun, the Hochsimmer and Scheidkopf near Mayen; the Eickelslay and Absberg in the southeast; and the Krautscheid and Hohe Kuppe in

4560-612: The VIII Corps in the west and threatened by the American breakthrough at Limburg, Höhne, at last in contact with Kesselring, requested the right to retreat his battered forces towards the east, but was denied. By now, only the 276th Infantry Division remained barely in fighting condition within the LXXXIX Army Corps. With a threat of the 276th Division's collapse, Höhne disobeyed Kesselring's instructions and retreated anyway. His own headquarters had already fallen under enemy fire when he and his remaining staff officers retreated. With this retreat,

4655-679: The area around Hillesheim and Oberbettingen . In the Upper Cretaceous and during the Tertiary , the Eifel was inundated mainly from the north. Remains of Cretaceous rocks were discovered on the High Fens. Scattered patches of Oligocene deposits can be found there and in the Western Eifel. From the Pliocene onwards, the Rhenish Massif, including the Eifel, experienced an uplift. This led to

4750-523: The attention of the Army Group G reserves with an initial attack, whereupon the American XII Corps ( Eddy ) crossed the Moselle in the sector defended by LXXXIX Army Corps. The remainders of the depleted 6th SS Mountain Division began joining the LXXXIX Army Corps piecemeal on the morning of 15 March 1945, whereupon they were sent by H ö hne against the left flank of the U.S. 90th Infantry Division in

4845-474: The basis of a significant mining activity for the extraction of building materials since Roman times. Some of the hills are volcanic vents. The peculiar circle-shaped lakes ( maars ) of the volcanic regions formed in volcanic craters. The first volcanic eruptions took place in the early Tertiary centred in the High Eifel and even before the volcanic activity of the Siebengebirge and Westerwald . Volcanism in

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4940-511: The basis of much of their civilization was Etruscan. Rome itself was located next to the southern edge of the Etruscan domain, which covered a large part of north-central Italy. The Roman numerals, in particular, are directly derived from the Etruscan number symbols : ⟨𐌠⟩ , ⟨𐌡⟩ , ⟨𐌢⟩ , ⟨𐌣⟩ , and ⟨𐌟⟩ for 1, 5, 10, 50, and 100 (they had more symbols for larger numbers, but it

5035-559: The cities of Aachen to the north, Trier to the south and Koblenz to the east. It descends in the northeast along a line from Aachen via Düren to Bonn into the Lower Rhine Bay . In the east and south it is bounded by the valleys of the Rhine and the Moselle . To the west it transitions in Belgium and Luxembourg into the geologically related Ardennes and the Luxembourg Ösling . In

5130-425: The clumsier IIII and VIIII . Subtractive notation is also used for 40 ( XL ), 90 ( XC ), 400 ( CD ) and 900 ( CM ). These are the only subtractive forms in standard use. A number containing two or more decimal digits is built by appending the Roman numeral equivalent for each, from highest to lowest, as in the following examples: Any missing place (represented by a zero in the place-value equivalent)

5225-406: The corps was dislodged from its positions on the east bank of the Rhine by the advancing American VIII Corps. The corps had been nominally assigned back to the 15th Army under Army Group B ( Model ) during the leadup to the American attack, but the LXXXIX Army Corps had not established any contact to its new commanding army and very little contact to its new commanding army group. Further weakened by

5320-434: The designation LXXXIX. Armeekorps on 25 October 1942. Its initial subordinate divisions were the 39th , 65th and 712th Infantry Divisions. The first commander of Generalkommando Schelde and LXXXIX Army Corps was Alfred Ritter von Hubicki , the former commander of the 9th Panzer Division . The corps headquarters was in Antwerp for most of 1943 as well as early 1944. From here, it commanded coastal garrison troops in

5415-401: The dots was variable and not necessarily linear . Five dots arranged like ( ⁙ ) (as on the face of a die ) are known as a quincunx , from the name of the Roman fraction/coin. The Latin words sextans and quadrans are the source of the English words sextant and quadrant . Each fraction from 1 ⁄ 12 to 12 ⁄ 12 had a name in Roman times; these corresponded to

5510-490: The edge of the Eifel and formed larger valleys. The Eifel covers an area of 5,300 km and is geographically divided into the North and South Eifel. It is further divided into several natural regional landscapes, some with further subdivisions. Since 2004, part of the North Eifel has been designated as the Eifel National Park . There are also four nature parks in the Eifel (from north to south): Rhineland , High Fens-Eifel , Volcanic Eifel , and South Eifel , although

5605-446: The fact that the corps had not retreated quickly enough when faced with the Rhine Gorge crossing by the U.S. VIII Corps. On 2 April 1945, Höhne was captured by American forces and formally surrendered to a Quartermaster detachment in the American rear. The LXXXIX Army Corps was marked 'Verbleib unbekannt' (German: status unknown ) by the German high command starting in April 1945. Roman numerals Roman numerals are

5700-412: The first extends only partly into the northern foothills of the Eifel. There are several distinct chains within the Eifel. Since 2004, about 110 km of the Eifel within the German state of North Rhine-Westphalia have been protected as the Eifel National Park nature reserve . Up to 1960, the German part of the Eifel, which belonged to the natural region of the Rhenish Massif , was, according to

5795-424: The first geological map of the area and, in 1853, the Geognostische Beschreibung der Eifel . In 1915 Otto Follmann published a new account, adding to the extent of scientific understanding at that time, the Abriss der Geologie der Eifel ("Abstract of the geology of the Eifel region". In 1986, Wilhelm Meyer finally published the volume, Geologie der Eifel ("Geology of the Eifel"), whose fourth, revised, edition

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5890-520: The general standard represented above. While subtractive notation for 4, 40 and 400 ( IV , XL and CD ) has been the usual form since Roman times, additive notation to represent these numbers ( IIII , XXXX and CCCC ) continued to be used, including in compound numbers like 24 ( XXIIII ), 74 ( LXXIIII ), and 490 ( CCCCLXXXX ). The additive forms for 9, 90, and 900 ( VIIII , LXXXX , and DCCCC ) have also been used, although less often. The two conventions could be mixed in

5985-447: The higher areas. The level of precipitation decreases significantly from west to east as a result of the rain shadow of the highlands. So the Schneifel receives an average of 1,200 mm of precipitation ( High Fens : 1,400 mm to 1,500 mm), while in Maifeld the average rainfall is only 600 mm. The bioclimatic conditions in the Eifel are favourable. Heat stress and air humidity are rarely present in summer. The Eifel has

6080-535: The intermediate ones were derived by taking half of those (half an X is V , half a 𐌟 is ↆ and half a Φ/⊕ is D ). Then 𐌟 and ↆ developed as mentioned above. The Colosseum was constructed in Rome in CE 72–80, and while the original perimeter wall has largely disappeared, the numbered entrances from XXIII (23) to LIIII (54) survive, to demonstrate that in Imperial times Roman numerals had already assumed their classical form: as largely standardised in current use . The most obvious anomaly (

6175-411: The last few days. With the collapse of LXXXIX Army Corps and the destruction of the 6th SS Mountain Division, the American forces had punched a hole between Army Group B and Army Group G. The only division left in any position to retaliate, the 11th Panzer Division , was quickly defeated before an effective response could be formulated. The collapse of the LXXXIX Army Corps was partially brought about by

6270-488: The loss of the 6,000 soldiers of the 6th SS Mountain Division, the LXXXIX Army Corps had no hope of repelling the U.S. VIII Corps. Kesselring reverted his decision after news arrived of the American advances, and attempted to engage the 6th SS Mountain Division to defend the Lahn river in the Limburg area, but the 6th SS Mountain Division was out of fuel, and its troops, now marching on foot, came too late to prevent Limburg's capture by American troops on 26 March. Faced with

6365-403: The more unusual, if not unique MDCDIII for 1903, on the north entrance to the Saint Louis Art Museum . There are numerous historical examples of IIX being used for 8; for example, XIIX was used by officers of the XVIII Roman Legion to write their number. The notation appears prominently on the cenotaph of their senior centurion Marcus Caelius ( c.  45 BC – 9 AD). On

6460-407: The names of the related coins: Other Roman fractional notations included the following: The Romans developed two main ways of writing large numbers, the apostrophus and the vinculum , further extended in various ways in later times. Using the apostrophus method, 500 is written as IↃ , while 1,000 is written as CIↃ . This system of encasing numbers to denote thousands (imagine

6555-442: The north it is limited by the Jülich-Zülpicher Börde . Within Germany it lies within the states of Rhineland-Palatinate and North Rhine-Westphalia; in the Benelux the area of Eupen , St. Vith and Luxembourg. Its highest point is the volcanic cone of the Hohe Acht (746.9 m). Originally the Carolingian Eifelgau only covered the smaller region roughly around the sources of the rivers Ahr , Kyll , Urft and Erft . Its name

6650-399: The northern and northwestern foothills of the present Eifel in the eastern half of the Arduenna silva of the Romans. West of the Eifelgau lay the Ardennengau , whose name was derived from Arduenna silva . Following the end of the Frankish Empire the name of the old gaue continued to be used in popular language. Over the centuries an ever-larger region was referred to as the Eifel. Today

6745-406: The part of LXXXIX Army Corps to the east of the breach were ordered by Hans Felber of 7th Army to make a fighting retreat towards the Rhine and to cross it if necessary. At noon on the 16 March 1945, the remainders of the LXXXIX Army Corps was ordered to cease its defensive efforts on the west bank of the Rhine, and began withdrawing to the east bank. The Kampfgruppe Koblenz did however remain in

6840-547: The publicly displayed official Roman calendars known as Fasti , XIIX is used for the 18 days to the next Kalends , and XXIIX for the 28 days in February. The latter can be seen on the sole extant pre-Julian calendar, the Fasti Antiates Maiores . There are historical examples of other subtractive forms: IIIXX for 17, IIXX for 18, IIIC for 97, IIC for 98, and IC for 99. A possible explanation

6935-517: The same digit to represent different powers of ten). This allows some flexibility in notation, and there has never been an official or universally accepted standard for Roman numerals. Usage varied greatly in ancient Rome and became thoroughly chaotic in medieval times. The more recent restoration of a largely "classical" notation has gained popularity among some, while variant forms are used by some modern writers as seeking more "flexibility". Roman numerals may be considered legally binding expressions of

7030-674: The same document or inscription, even in the same numeral. For example, on the numbered gates to the Colosseum , IIII is systematically used instead of IV , but subtractive notation is used for XL ; consequently, gate 44 is labelled XLIIII . Especially on tombstones and other funerary inscriptions, 5 and 50 have been occasionally written IIIII and XXXXX instead of V and L , and there are instances such as IIIIII and XXXXXX rather than VI or LX . Modern clock faces that use Roman numerals still very often use IIII for four o'clock but IX for nine o'clock,

7125-448: The same letters. For example, " XXX " and " XL " have other connotations in addition to their values as Roman numerals, while " IXL " more often than not is a gramogram of "I excel", and is in any case not an unambiguous Roman numeral. As a non- positional numeral system , Roman numerals have no "place-keeping" zeros. Furthermore, the system as used by the Romans lacked a numeral for the number zero itself (that is, what remains after 1

7220-638: The so-called Eifel North-South Zone. This is a region of subsidence , which runs from the Trier Bay in the south to the Lower Rhine Bay in the north. Through this zone existed at one time a sea link between north and south Central Europe. The remains of the sediments laid down at this time have survived to a greater extent in the Maubach- Mechernich Triassic Triangle in the north and in the Oberbettingen Triassic Graben in

7315-629: The southern area of the German-speaking Community of Belgium . The Eifel is part of the Rhenish Massif ; within its northern portions lies the Eifel National Park . The Eifelian stage in geological history is named after the region because rocks of that period reach the surface in the Eifel at the Wetteldorf Richtschnitt outcrop. The inhabitants of the Eifel are known as Eiflers or Eifelers . The Eifel lies between

7410-600: The southwest. The mountains and hills of the Eifel include the following (in order of height in metres above sea level ): (near Schwarzer Mann ) For a list of these and other Eifel mountains and hills see the List of mountains and hills of the Eifel . Many of these prominent points are linked by the Eifel-Ardennes Green Route , which crosses the east and south of the region, the German Volcano Route ,

7505-643: The southwestern Netherlands and at the Belgian coast. For instance, it oversaw the 65th Infantry Division at Middelburg , the 712th Infantry Division at Oostburg and the 171st Infantry Division at Diksmuide in April 1943. By early June 1944, as Allied troops were about to land in Normandy , the corps headquarters were still at Antwerp, and its subordinate 48th , 712th and 165th Infantry Divisions were stationed at Ostende , Oostburg and Middelburg, respectively. It formed

7600-421: The state information system of the conservation administration (LANDIS): The BfN groups the 3 (two-digit) major unit groups under the combined group designated D45 . Apart from its valleys, the Eifel is a gently rolling plateau from which elongated mountain ridges and individual mountains rise. The majority of these summits do not attain a great height above the surrounding terrain. Several, however, like

7695-563: The streams and rivers cutting into the gently rolling landscape resulting in the present appearance of the low mountain range with its flat plateaus and deeply incised valleys. Due to numerous recent research projects, climate changes since the last ice age can be traced in detail in the Eifel region. Volcanic activity in the Eifel began 50 millions of years ago and continues into the geological present. It created numerous volcanic structures, lava flows and extensive layers of volcanic ejecta made of tuff and pumice , which have formed

7790-542: The surface, and partly by melt-ascent at deep fractures in the Earth's crust. Research has shown that the volcanism is still active; the Eifel region is rising by 1–2 mm per year and there are escaping gases, for example, carbon dioxide (CO 2 ) in the Laacher See . The Eifel is in the Atlantic climate zone with its relatively high precipitation; winters that are moderately cold and long with periods of snow; and summers that are often humid and cool. The prevailing wind

7885-462: The title screens of movies and television programs. MCM , signifying "a thousand, and a hundred less than another thousand", means 1900, so 1912 is written MCMXII . For the years of the current (21st) century, MM indicates 2000; this year is MMXXIV (2024). Roman numerals use different symbols for each power of ten, and there is no zero symbol, in contrast with the place value notation of Arabic numerals (in which place-keeping zeros enable

7980-498: The unit as . Fractions less than 1 ⁄ 2 are indicated by a dot ( · ) for each uncia "twelfth", the source of the English words inch and ounce ; dots are repeated for fractions up to five twelfths. Six twelfths (one half), is S for semis "half". Uncia dots were added to S for fractions from seven to eleven twelfths, just as tallies were added to V for whole numbers from six to nine. The arrangement of

8075-401: The western Eifel. East Eifel volcanism came to an end with a huge eruption, as a result of which the magma chamber emptied and collapsed, creating a caldera . Today's Laacher See formed in the caldera. The ashes from the eruption can be detected today in deposits all over Central Europe and as far as Bornholm as a thin layer. Volcanism is caused by magma , which either rises directly to

8170-596: The western part of the plateau. In the eastern part, in the High Eifel and Volcanic Eifel , individual cinder cones and basalt kuppen , like the Hohe Acht and the Ernstberg , emerged as a result of volcanicity in the Tertiary and Quaternary periods and rise above the undulating countryside. The rivers draining into the Moselle , Rhine and Meuse , such as the Our , Kyll , Ahr , Brohlbach and Rur , have cut deep into

8265-608: The whole German-speaking part of the range between the Rhine, Meuse and Moselle is called the Eifel (including several areas outside of Germany, see the →  Belgian Eifel ), while the French-speaking part in Belgium and France is called the Ardennes . 762 Eifflensis pagus , 772 Eiffelnsis pagus , 804 in pago aquilinse , 838 Eifla , 845 Eiflensis pagus , 855 Eiflinsis pagus , 860–886 Agflinse , 975 Aiflensis pagus , 1051 Eiffila , 1105 Eifla , 1121 Eifla Müller/Schnetz (1937) believe that an -n- has dropped out between

8360-484: Was a circled or boxed X : Ⓧ, ⊗ , ⊕ , and by Augustan times was partially identified with the Greek letter Φ phi . Over time, the symbol changed to Ψ and ↀ . The latter symbol further evolved into ∞ , then ⋈ , and eventually changed to M under the influence of the Latin word mille "thousand". According to Paul Kayser, the basic numerical symbols were I , X , 𐌟 and Φ (or ⊕ ) and

8455-669: Was called Arduenna silva ("high forest"). The oldest record of the name "Eifel" does not occur until the Early Middle Ages . Following the collapse of the West Roman Empire , the Frankish Empire emerged in the territories of present-day France and western Germany. This was divided into gaue (Lat.: pagi ). One of them, the Eifelgau , covered the source regions of the rivers Erft , Urft , Kyll and Ahr , i.e. predominantly

8550-461: Was called upon by the commander of Army Group G, Paul Hausser, to defend the Moselle line. The corps command started to arrive there by 9 March 1945. The LXXXIX Army Corps was tasked with the defense of the Moselle from Koblenz over Wierschem to a sector north of Cochem . Here, it stood to the right of XIII Army Corps ( von Oriola ), which consisted of the remnants of the 2nd Panzer Division as well as three Volksgrenadier Divisions . The corps

8645-503: Was gradual, and the use of Roman numerals persisted. One place they are often seen is on clock faces . For instance, on the clock of Big Ben (designed in 1852), the hours from 1 to 12 are written as: The notations IV and IX can be read as "one less than five" (4) and "one less than ten" (9), although there is a tradition favouring the representation of "4" as " IIII " on Roman numeral clocks. Other common uses include year numbers on monuments and buildings and copyright dates on

8740-411: Was insufficiently equipped to defend the serpentine mountainous Moselle area, as it lacked both the manpower required to defend the north bank as well as the reserves required to beat back Allied attempts to cross the Moselle. Although not nominally part of LXXXIX Army Corps, H ö hne also assumed effective control of Kampfgruppe Koblenz , a local defense force of 1,800 men from the Koblenz area, as well as

8835-521: Was more recently transferred to the entire region. The Eifel belongs to that part of the Rhenish Massif whose rolling plateau is categorised as peneplain highland ( Rumpfhochland ), which was formed by the erosion of the ancient mountains of the Variscan mountain building phase and subsequent further uplifting. Individual mountain chains, up to 700 m, such as the Schneifel and High Fens , run through

8930-733: Was washed in from the north from the great north continent of Euramerica ( Laurussia or the Old Red Continent ) which was formed by Caledonian mountain building during the Silurian . From the end of the Lower Carboniferous the sea basin was caught up in the Variscan mountain building process, pushed together and uplifted, and thus formed part of the Variscan mountain system that, in the Upper Carboniferous and early Permian , covered large areas of Europe. The Eifel geological structures like main folds and overthrusts can be traced in

9025-400: Was written variously as ⟨𐌟⟩ or ⟨ↃIC⟩ , and was then abbreviated to ⟨ Ↄ ⟩ or ⟨ C ⟩ , with ⟨ C ⟩ (which matched the Latin letter C ) finally winning out. It might have helped that C was the initial letter of CENTUM , Latin for "hundred". The numbers 500 and 1000 were denoted by V or X overlaid with

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