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The first purpose-built racing circuits[edit]

The Milwaukee Mile is the second-oldest motor racing track in the world still in existence, with racing being held there since 1903. It was not purposely built for motor racing, however. It started as a one-mile (1.6 km) horse-racing track in the 19th century. The first closed-circuit automobile race was held on July 25, 1899 at the Branford Park horse track in New Haven, Connecticut,[13] and was won by Hiram Percy Maxim in a Pope Columbia.
Knoxville Raceway in Knoxville, Iowa, is the oldest racing venue, and one of the most prestigious, in the United States. It was built in the late 1800s at the Marion County Fairgrounds in Iowa. It was built for a horse-racing track, just like the Milwaukee Mile. Although sanctioned races were not held until 1914, one automobile race was held in 1901. The race was not good because of the wind; but in 1961, the first Knoxville Nationals was won by Roy Robbins. Now the Nationals are sanctioned by the World of Outlaws.
From 1903 to 1914, a one-mile dirt oval track was run on Brunots Island, just south of Pittsburgh on the Ohio River. Louis Chevrolet won the AAA Champion car in 1905. On September 10, 1907, Rex Reinersten was fatally injured in a crash there. In 1916, Chevrolet won the first Universal Films Trophy at the mile and an eighth Uniontown Speedway board track, south of Pittsburgh in Hopwood, Pennsylvania.
A remaining section of theBrooklands track in 2007
Brooklands, in Surrey, was the first purpose-built motor racing venue, opening in June 1907.[14] It featured a 4.43 km (2.75 mi) concrete track with high-speed banked corners. Brooklands was also a centre of the aviation industry, with Vickers setting up a factory and aerodrome there during World War I. The racing circuit was closed in 1939 as war-time aircraft production took over. Damage done to the track during World War II meant the track never reopened for racing.
Competition gradually spread to other parts of the British Empire. The first competition in India was held in 1905 by the Motor Union of Western India. It ran from Delhi to Mumbai, (Delhi–Bombay trials 1905) a distance of 810 miles (1,300 km), in an attempt to expose India to the automobile and test its suitability for Indian conditions. Lord Curzon, the Viceroy, gave his consent to the event.[15][16]
One of the oldest existing purpose-built automobile racing circuits in the United States, still in use, is the 2.5-mile (4.02 km)-longIndianapolis Motor Speedway in Speedway, Indiana, built from March to August 1909, when it first opened for racing. It is the largest capacity sports venue of any variety worldwide, with a top capacity of some 257,000+ seated spectators.[17] The oldest asphalt-paved oval track in the United States is Thompson Speedway Motorsports Park in Thompson, Connecticut, once known as the "Indianapolis of the East."