Janet Potter highlights discoveries from her mission to read bios of every American president in order:

Did you know Millard Fillmore’s wife established the White House library? James K. Polk increased the size of the country by 500,000 square miles. John Tyler abandoned his own party while in office, and was later elected to the Confederate Senate. Zachary Taylor was Jefferson Davis’ father-in-law. Martin Van Buren’s first language was Dutch. Thomas Jefferson and John Adams visited Shakespeare’s home in Stratford together.

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