A series of worldwide protests began in reaction to the murder of George Floyd by Minneapolis police.
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The last Ford Model T motor car was ceremoniously rolled off the assembly line.
The first-ever Le Mans endurance race began.
Carlos Martinez famously hit a ball off Jose Canseco's head for a home run in major league baseball.
Ty Cobb, a future Baseball Hall of Fame center fielder, was the first to gain 1,000 extra-base hits.
NASA's Apollo 10 mission returned to earth after successfully testing all possible elements of a Moon landing.
