Question: What year was the end of the company that built the White armored car?

full_context: Document 1: Wolf Armoured Vehicle: The idea for the Wolf was born from the need of transporting soldiers safely during missions in an urban environment, and in peacekeeping missions. Recently the Israeli Ministry of Defense ordered 150 Wolf Armoured Vehicles from Rafael Advanced Defense Systems and an order for Carmor, for some to be used in urban combat. This is currently in production. The vehicle's first reported use was by the Israel Defense Forces in Operation Bringing Home the Goods on 14 March 2006.
Document 2: White Motor Company: The White Motor Company was an American automobile, truck, bus and agricultural tractor manufacturer from 1900 until 1980. The company also produced bicycles, roller skates, automatic lathes, and sewing machines. Before World War II, the company was based in Cleveland, Ohio. White Diesel Engine Division in Springfield, Ohio, manufactured diesel engine generators, which powered U.S. military equipment and infrastructure, namely Army Nike and Air Force Bomarc launch complexes, and other guided missile installations and proving grounds, sections of SAGE and DEW Line stations, radars, combat direction centers and other ground facilities of the U.S. aerospace defense ring, such as the Texas Towers.
Document 3: T7 Combat Car: In November 1936, the US Army's cavalry branch decided to modernize and needed a fully armored vehicle, capable of keeping up with the cavalry and of fulfilling regular combat duties. Prohibited from developing tanks by the National Defense Act of 1920 which defined "tanks" as the responsibility of the infantry, the phrase "combat car" was used as a legal formality. The T5 Combat Car had been built on similar lines to the infantry's T2 Light Tank, leading to the M1 Combat Car. After the T4 Combat Car had been tested, the Ordnance Committee recommended working on a road-track convertible tank design. The T6 Combat Car design was cancelled but in November 1936 the Chief of Cavalry ordered that work continue on designing a convertible tank. Designed and built at the Rock Island Arsenal between 1937 and 1938, the T7 Combat Car was based on the M1 Combat Car but with an extended chassis and a convertible suspension – the ability to travel using wheels or tracks. Theoretically, it was more versatile than a conventional tank, having the ability to move with and without tracks on roads, much like the Christie designed tanks. The main gun of the project was traditional – one .50 cal (12.7 mm) M2 Browning heavy machine gun and three .30 caliber (7.62 mm) M1919 machine guns. However, this armament was useful only against infantry, and was inadequate for use against other tanks of the period.
Document 4: Car: A car (or automobile) is a wheeled motor vehicle used for transportation. Most definitions of car say they run primarily on roads, seat one to eight people, have four tires, and mainly transport people rather than goods. Cars came into global use during the 20th century, and developed economies depend on them. The year 1886 is regarded as the birth year of the modern car when German inventor Karl Benz built his Benz Patent - Motorwagen. Cars became widely available in the early 20th century. One of the first cars that were accessible to the masses was the 1908 Model T, an American car manufactured by the Ford Motor Company. Cars were rapidly adopted in the US, where they replaced animal - drawn carriages and carts, but took much longer to be accepted in Western Europe and other parts of the world.
Document 5: Kaiser Motors: Kaiser Motors (formerly Kaiser-Frazer) Corporation made automobiles at Willow Run, Michigan, United States, from 1945 to 1953. In 1953, Kaiser merged with Willys-Overland to form Willys Motors Incorporated, moving its production operations to the Willys plant at Toledo, Ohio. The company changed its name to Kaiser Jeep Corporation in 1963.
Document 6: Rover Light Armoured Car: The Light Armoured Car (Aust), also known as Rover, was an armoured car produced in Australia during the Second World War.
Document 7: Allis-Chalmers: Allis - Chalmers was a U.S. manufacturer of machinery for various industries. Its business lines included agricultural equipment, construction equipment, power generation and power transmission equipment, and machinery for use in industrial settings such as factories, flour mills, sawmills, textile mills, steel mills, refineries, mines, and ore mills. The first Allis - Chalmers Company was formed in 1901 as an amalgamation of the Edward P. Allis Company (steam engines and mill equipment), Fraser & Chalmers (mining and ore milling equipment), the Gates Iron Works (rock and cement milling equipment), and the industrial business line of the Dickson Manufacturing Company (engines and compressors). It was reorganized in 1912 as the Allis - Chalmers Manufacturing Company. During the next 70 years its industrial machinery filled countless mills, mines, and factories around the world, and its brand gained fame among consumers mostly from its farm equipment business's orange tractors and silver combine harvesters. In the 1980s and 1990s a series of divestitures transformed the firm and eventually dissolved it. Its successors today are Allis - Chalmers Energy and AGCO.
Document 8: Davidson-Cadillac armored car: The Davidson-Cadillac armored car of 1915 was developed on a Cadillac chassis by Royal Page Davidson and the cadets of the Northwestern Military and Naval Academy in Highland Park, Illinois. This military vehicle is the "first true" fully armored vehicle made in the United States because it was built specifically just for that purpose and was not a conversion of an automobile or truck.
Document 9: History of the automobile: In the United States, brothers Charles and Frank Duryea founded the Duryea Motor Wagon Company in 1893, becoming the first American automobile manufacturing company. The Autocar Company, founded in 1897, established a number of innovations still in use and remains the oldest operating motor vehicle manufacturer in the United States However, it was Ransom E. Olds and his Olds Motor Vehicle Company (later known as Oldsmobile) who would dominate this era of automobile production. Its production line was running in 1901. The Thomas B. Jeffery Company developed the world's second mass - produced automobile, and 1,500 Ramblers were built and sold in its first year, representing one - sixth of all existing motorcars in the United States at the time. Within a year, Cadillac (formed from the Henry Ford Company), Winton, and Ford were also producing cars in the thousands.
Document 10: Chevrolet Corvette: The Chevrolet Corvette, known colloquially as the Vette or Chevy Corvette, is a sports car manufactured by Chevrolet. The car has been produced through seven generations. The first model, a convertible, was introduced at the GM Motorama in 1953 as a concept show car. Myron Scott is credited for naming the car after the type of small, maneuverable warship called a corvette. Originally built in Flint, Michigan and St. Louis, Missouri, the Corvette is currently manufactured in Bowling Green, Kentucky and is the official sports car of the Commonwealth of Kentucky.
Document 11: Ann Arbor, Michigan: High tech companies have located in the area since the 1930s, when International Radio Corporation introduced the first mass-produced AC/DC radio (the Kadette, in 1931) as well as the first pocket radio (the Kadette Jr., in 1933). The Argus camera company, originally a subsidiary of International Radio, manufactured cameras in Ann Arbor from 1936 to the 1960s. Current firms include Arbor Networks (provider of Internet traffic engineering and security systems), Arbortext (provider of XML-based publishing software), JSTOR (the digital scholarly journal archive), MediaSpan (provider of software and online services for the media industries), Truven Health Analytics, and ProQuest, which includes UMI. Ann Arbor Terminals manufactured a video-display terminal called the Ann Arbor Ambassador during the 1980s. Barracuda Networks, which provides networking, security, and storage products based on network appliances and cloud services, opened an engineering office in Ann Arbor in 2008 on Depot St. and recently announced it will move downtown to occupy the building previously used as the Borders headquarters.
Document 12: White armored car: The White armored car was a series of armored cars developed by the White Motor Company in Cleveland, Ohio from 1915.
Document 13: Warsaw: The FSO Car Factory was established in 1951. A number of vehicles have been assembled there over the decades, including the Warszawa, Syrena, Fiat 125p (under license from Fiat, later renamed FSO 125p when the license expired) and the Polonez. The last two models listed were also sent abroad and assembled in a number of other countries, including Egypt and Colombia. In 1995 the factory was purchased by the South Korean car manufacturer Daewoo, which assembled the Tico, Espero, Nubia, Tacuma, Leganza, Lanos and Matiz there for the European market. In 2005 the factory was sold to AvtoZAZ, a Ukrainian car manufacturer which assembled there the Chevrolet Aveo. The license for the production of the Aveo expired in February 2011 and has since not been renewed. Currently the company is defunct.
Document 14: Waltham Watch Company: The Waltham Watch Company, also known as the American Waltham Watch Co. and the American Watch Co., produced about 40 million watches, clocks, speedometers, compasses, time fuses, and other precision instruments between 1850 and 1957. The company's historic 19th-century manufacturing facilities in Waltham, Massachusetts have been preserved as the American Waltham Watch Company Historic District.
Document 15: List of John Deere tractors: The Dain All - Wheel Drive was the first tractor produced by John Deere. In 1911, Deere purchased the Dain Manufacturing Company of Ottumwa, Iowa. The next year, Deere decided to design its own tractor, and Dain founder Joseph Dain Sr., was directed to design that tractor. After several prototypes, the design was finalized in 1917, and 100 production units were ordered. By 1919 when that production run was complete, Deere had purchased the Waterloo Boy company. Although the Dain AWD was ahead of its time, with features such as a shift - on - the - fly transmission, Deere halted production in late 1919, partly because the cost of the Dain tractor was double that of the Waterloo Boy, and partly because of the death of Dain Sr.
ground_truth: 1980
sub_queries: What company built White armored car? Answer: White Motor Company
What year was the end of White Motor Company ? Answer: 1980