Timeline Wednesday 15 March 1820

2nd Millennium › 19th Century › 1820s › 1820 › March 1820 › 15 March 1820

Wednesday 15 March 1820

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All times in UTC · Dashed edge = started before, or continues beyond, this day

Events on Wednesday 15 March 1820 1

1820 Maine admitted as the 23rd US state Separated from Massachusetts under the Missouri Compromise Maine entered the Union as a free state on 15 March 1820, balancing the admission of Missouri as a slave state. It had been part of Massachusetts since colonial times.

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