On August 16, 1950, Hank Thompson of the New York Giants hits two inside-the-park home runs at the Polo Grounds in a game against the rival Brooklyn Dodgers. Thompson becomes the first player to achieve the feat since Terry Moore of the St. Louis Cardinals in 1939.
Eddie Murray of the Baltimore Orioles becomes the first player in major league history to switch-hit home runs in two consecutive games
May 9, 1987
Mark McGwire of the Oakland A’s becomes the first rookie to hit 30 home runs before the All-Star break
July 5, 1987
July 18, 1961