Statement of Significance (as of designation - February 27, 1987):
Constructed in 1909, this is the only reasonably intact early 20th-century high-speed auto race course in the country, and the oldest continuously operated automobile race course anywhere. It has long been the premier auto racing site in the United States: Since 1911, it has been the site of the Indianapolis 500, one of the largest single-day spectator sporting events in the world. The Speedway has also made significant contributions to automobile design, performance, technology, and safety.
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