Short answers, pulled from the story.
The Indianapolis 500 is an open-wheel automobile race held annually at the Indianapolis Motor Speedway since 1911. It is considered the world's largest single-day sporting event and is part of the Triple Crown of Motorsport. The race is traditionally held over Memorial Day weekend and is contested as part of the IndyCar Series.
Indianapolis was established as a planned city in 1821, when the Indiana General Assembly adopted the name on the 6th of January 1821. Surveyors Alexander Ralston and Elias Pym Fordham were appointed in April 1821 to design the town plan, laying out a 1 square mile grid centered on a traffic circle.
Unigov is the name for a city-county consolidation enacted effective the 1st of January 1970, during the mayoral administration of Richard Lugar. It expanded Indianapolis's land area by more than 300 square miles and increased its population by roughly 250,000 people. It was the first major city-county consolidation in the U.S. without a referendum since the creation of the City of Greater New York in 1898.
Indiana Avenue in Indianapolis produced several major jazz figures, including Wes Montgomery, Freddie Hubbard, J. J. Johnson, Slide Hampton, David Baker, James Spaulding, and the Montgomery Brothers. Wes Montgomery is considered one of the most influential jazz guitarists of all time and is credited with popularizing the Naptown Sound.
According to the 2020 census, Indianapolis proper had a population of 887,642, making it the 16th most populous city in the United States and the fourth most populous state capital. The Indianapolis metropolitan area had a population of 2,111,040 in 2020.
Indianapolis was the center of the Golden Age of Indiana Literature from roughly 1870 to 1920, producing writers including James Whitcomb Riley, Booth Tarkington, and Meredith Nicholson. Kurt Vonnegut, author of Slaughterhouse-Five, is considered the city's most acclaimed twentieth-century writer. John Green, author of the 2012 novel The Fault in Our Stars, which is set in Indianapolis, is also from the city.