By the Numbers
Knickerbocker Rules
June 19, 1846: Date rules for the first official game of baseball were adopted
1: Number of bounces a ball could make before being caught for an out
1: Number of bases runner could take when ball hit out of the field of play
21: Number of runs scored by one team needed to end the game
Infinite: Number of innings allowed
Source: The Baseball Almanac
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