INDIANAPOLIS -- 1972 found Indianapolis preparing to showcase the achievements of African-Americans in culture, history and art during the second Indiana Black Expo.
Thousands attended the launch in the summer of '71 at the state fairgrounds. That success prompted a move to the newly opened Indiana Convention Center in 1972.
At the Indianapolis Motor Speedway, the 56th running of the Indianapolis 500 was held on Saturday, May 27.
Just that morning, actor and entertainer Jim Nabors was asked to sing "Back Home Again in Indiana" during the pre-race ceremonies. It was the start of a long tradition, and made Nabors an Indianapolis 500 icon.
Fans focused on some great storylines: Would one of the Unsers take the checkered flag again?
Bobby Unser took the pole position with a new record speed of more than 195 miles per hour.
Meanwhile, his brother Al Unser Sr. looked to become the first three-time winner.
Unfortunately, Bobby's day was done after 30 laps, and Al had to settle for runner-up.
Mark Donohue drove his way into victory circle and recorded the first win for car owner Roger Penske.
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