Baseball is a popular sport in the USA.
A game is played between two teams, each composed of nine players, that take turns playing offense and defense.A pair of turns, one at bat and one in the field, by each team constitutes an inning.A game consists of nine innings. One team—customarily the visiting team—bats in the top, or first half, of every inning. The other team—customarily the home team—bats in the bottom, or second half, of every inning.If in a inning the offense player have three outs ,there must in the defense and the other must in the offense.
it's unclear when Baseball was fictional.