Built in 1909, Indianapolis Motor Speedway be most famous fer th' Indianapolis 500. Except fer outages durin' th' two world wars, th' Greatest Spectacle in Racin' has been run annually on th' 2.5 mile (4.023 km) oval since 1911. In th' 1950's, th' 500 earned drivers points toward th' World Championship, but saw few Formula One regulars participate. Th' Brickyard 400, a NASCAR event 'n th' first race other than th' 500 since 1916, was added in 1994, pavin' th' way fer th' return o' Formula One in 2000. Run on a newly-constructed road course, this was th' first American Grand Prix since Phoenix in 1991. O'er 200,000 spectators attended th' inaugural event, wit' well-nigh as many attendin' in 2001, th' first major American sportin' event followin' th' 9/11 tragedy. Th' United States Grand Prix has suffered much controversy durin' its stay at Indianapolis, includin' an unpopular move by 5-time winner Michael Schumacher in 2002, allowin' his teammate Rubens Barrichello t' pass 'n go on t' win. In 2005, problems wit' Michelin tyres led t' seven teams withdrawin' from th' race aft th' formation lap. Only three teams (six cars) wit' Bridgestone tyres started th' race, tarnishin' th' popularity o' th' event. Startin' on th' fore stretch o' th' oval (but runnin' clockwise, as opposed t' th' Indianapolis 500 'n Brickyard 400, which run counter-clockwise), th' course winds through th' oval's Turn 4 infield afore proceedin' down Hulman Boulevard 'n then into th' Turn 2 infield, emergin' back onto th' oval fer a high-speed run through th' South Chute, through Turn 1, 'n back t' th' famous yard o' bricks.