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Americans began playing baseball on in formal teams, using local rules, in the early 1800s.
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Alexander Joy Cartwright invented the modern baseball field in 1845.
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Alexander Cartwright devised the first rules and regulations for the modern game of baseball today in 1845.
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The first recorded game was in1846.
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By the 1860s the sport was being described as America's "national pastime."
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In 1869 the Cincinnati Red Stockings became the first open-salaried team and considered the first professional team.
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The first organized baseball league was formed in 1876.