The rules of baseball have been changed literally every year, right from 1877 when the first rule book was issued for the National League.

The first baseball stadium built in the United States was the Forbes Field, built in Pittsburgh in 1909.

The distance between the bases is exactly 90 feet in the Major League Baseball, while the distance from the pitchers mound to the home plate is 60 feet and 8 inches.

The first World Series was played in 1903 between Pittsburgh and Boston. The nine-game series was won by Boston 5-3
In baseball, the umpires used to sit in padded chairs behind the home plate before 1859.

The lifespan of an average baseball is just eight days. A baseball is used only once in one Major League Baseball game.