Cubs 365, September 19

On this day in 1955, Ernie Banks became the first player in baseball history to hit five grand slams in one season. He was only 24 years old at the time. The record would remain on the books for more than thirty years. (Don Mattingly hit six in 1987)

Ernie hit that fifth grand slam in St. Louis against future teammate Lindy McDaniel. It was Banks' 44th (and last) homer of the season.

Between 1955 and 1960 Ernie would hit more home runs than any other player in baseball, including Hank Aaron, Mickey Mantle, and Willie Mays, and would win two MVP awards playing for one of the worst teams in baseball.