• William Henry Harrison was the ninth president of the United States, his grandson Benjamin Harrison was the 23rd.

• The youngest president was Teddy Roosevelt. He was 42 when he was first elected president.

• James Madison and George Washington were the only two presidents to sign the Constitution.

• President Trump is the nation’s 45th president, but in reality there have only been 44. Grover Cleveland is counted as our 22nd and our 24th because his two terms were separated.