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In 1818 Missouri had enough population to become a state. In 1821 it was known as an official slaveholding state and it became the 24th state.
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Misssouri became the first slaveholding state to end salvery.
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St. Louis, Missouri holds the World's Fair.
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William Clay is elected Missouri's first African American Congrressman.
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Courts order that Missouri schools desegregate.
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St. Louis gains population for the first time in 50 years.