What does the "500" in the Indianapolis 500 refer to?

What does the `500` in the Indianapolis 500 refer to?

Here is the question :

WHAT DOES THE “500” IN THE INDIANAPOLIS 500 REFER TO?

Here is the option for the question :

500 laps
500 miles
500 hours of racing
500 drivers

The Answer:

And, the answer for the the question is :

500 miles

Explanation:

[STC0017453]. The largest sports facility in the world is the Indianapolis Motor Speedway, located in Indianapolis, Indiana. A vast racecourse is surrounded by more than 250,000 permanent seats. The racetrack is a loop, like most racetracks: It circles a staggering 253-acre infield in an oval shape. It takes two and a half miles to complete one lap of the circuit. You would have to go 1,250 miles if you made 500 laps around the Indianapolis Motor Speedway track. That’s 750 miles more than the renowned Indianapolis 500 demands, which is fortunate for the drivers. The Indianapolis 500 is named after the total number of miles covered, not the number of laps around the track. 200 laps are required to complete the Indianapolis 500.