National League Baltimore, 1836

Babe Ruth, 1920

The earliest known mention of baseball in the U.S was a 1791 Pittsfield, Massachusetts ordinance banning the playing of the game within 80 yards (73 m) of the town meeting house. In 1903, the British sportswriter Henry Chadwick published an article speculating that baseball derived from a British game called rounders, which Chadwick had played as a boy in England. But baseball executive Albert Spalding disagreed. Baseball, said Spalding, was fundamentally an American sport and began on American soil. To settle the matter, the two men appointed a commission, headed by Abraham Mills, the fourth president of the National League of Professional Baseball Clubs. The commission, which also included six other sports executives, labored for three years, after which it declared that Abner Doubleday invented the national pastime. This would have been a surprise to Doubleday. The late Civil War hero "never knew that he had invented baseball. But 15 years after his death, he was anointed as the father of the game," writes baseball historian John Thorn. The myth about Doubleday inventing the game of baseball actually came from a Colorado mining engineer. Another early reference reports that base ball was regularly played on Saturdays in 1823 on the outskirts of New York City in an area that today is Greenwich Village.In 1828, an article published in a Hagerstown, Maryland, newspaper briefly describes a young girl who's drawn away from her daily chores to play a familiar game with her friends. In "A Village Sketch," author Miss Mitford wrote: "Then comes a sun-burnt gipsy of six, beginning to grow tall and thin and to find the cares of the world gathering about her; with a pitcher in one hand, a mop in the other, an old straw bonnet of ambiguous shape, half hiding her tangled hair; a tattered stuff petticoat once green, hanging below an equally tattered cotton frock, once purple; her longing eyes fixed on a game of baseball at the corner of the green till she reaches the cottage door, flings down the mop and pitcher and darts off to her companions quite regardless of the storm of scolding with which the mother follows her runaway steps.

Source: Wikipedia.org