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Ohio was officially admitted into the union on March 1, 1803.

President Jefferson signed the act that set Ohio's borders as a state into law in 1803, but due to a clerical oversight, Congress never officially voted to admit Ohio into the Union. It wasn't until 1953 that this error was discovered. Congress passed a resolution to officially admit Ohio to the union on the first day that the State Assembly met (March 1, 1803). This act of Congress was signed by President Eisenhower on August 7, 1953 making it official.

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12y ago

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