A series of worldwide protests began in reaction to the murder of George Floyd by Minneapolis police.
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Amazon announced the acquisition of film studio Metro Goldwyn Mayer for $8.45 billion.
The Beatles released their eighth album, Sgt. Pepper's Lonely Hearts Club Band.
Arthur C. Clarke was knighted.
Simon Pagenaud of France finished the 2016 Indy 500 just two-tenths of a second ahead of Alexander Rossi.
NASA's Apollo 10 mission returned to earth after successfully testing all possible elements of a Moon landing.
