1921 – A baseball game was broadcast on the radio for the first time as KDKA Radio in Pittsburgh calls a game between the Pirates and Philadelphia.
1936 – Jesse Owens continues to dominate the Berlin Olympics, winning his third gold medal, this time in the 200-meter dash.
1972 – Detroit Tigers shortstop Ed Brinkman commits an error after a record-long errorless streak of 72 games and 331 chances.
1975 – The Philadelphia Phillies set an MLB record when their first eight batters get hits in a game, punishing Cubs starter Bill Bonham.
1979 – Then Philadelphia Phiillie, Pete Rose, hits his NL record 2,427th single.
1984 – Toronto DH Cliff Johnson sets an MLB record by hitting his 19th career pinch-hit home run.
1986 – Giants pitcher Steve Carlton becomes the second pitcher in MLB history to record 4,000 career strikeouts.
1992 – Cuba wins the first-ever gold medal in baseball at the 1992 Olympics in Barcelona.
1999 – Cardinals slugger Mark McGwire becomes the 16th player in MLB history to record 500 career home runs.
2005 – Albert Pujols becomes the first player in MLB history to record 30 or more home runs in each of his first five seasons.
2006 – Warren Moon, Troy Aikman, John Madden, and Reggie White are inducted into the Pro Football Hall of Fame.
2007 – Atlanta pitcher Tom Glavine becomes the 23rd pitcher in MLB history to win 300 games.
2013 – MLB suspends Alex Rodriguez for 211 games as part of the Biogenesis PED scandal.
2016 – The Summer Olympics open in Rio de Janeiro, Brazil.
Related Topicsthis day in sports history