May 10

1913

 * The New York Yankees committed 8 errors, but still managed to win the game 10-9 against the Detroit Tigers

1946

 * A 5-4 win over the New York Yankees gave the Boston Red Sox their 15th straight win. They burst out of the game with a 21-3 record to start the season. They would finish the season with a 104-50 record.

1967

 * Hank Aaron went 2-8 with a walk and 4 RBI over the course of a double header. Both hits were home runs. One of the homers was of the inside the park variety. The Atlanta Braves lost the first game against the Philadelphia Phillies 4-3, but beat them in game 2, 7-2.

1969

 * The National and American Football Leagues announced their plans to merge for the 1970-71 season

1979

 * John McMullen became the CEO of the Houston Astros

1997

 * The Chicago Cubs got the 68th triple play in MLB history

2001

 * Peter Forsberg of the Colorado Avalanche had his spleen removed in an emergency operation. The surgery took place hours after the Avalanche eliminated the Los Angeles Kings in game 7 of the Western Conference semifinals