There were two Presidents in the year 1845.
The first was John Tyler. He was the 10th President of the United States. He took office on April 4, 1841 and left office on March 4, 1845.
He was then followed by James K. Polk, who was the 11st President, taking office on March 4, 1845 and leaving office on March 4, 1849.
View the President in 1852
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