Did you know Johnson never attended a single day of school in his life ? (He taught himself to read and write, making him the president with the least formal education in U.S. history alongside Abraham Lincoln.)

Did you know before entering politics, he worked as an apprentice tailor and eventually opened his own tailoring shop in Greeneville, Tennessee and he even sewed his own suits while serving as a politician ?

Did you know following the intense stress of his impeachment, Johnson reportedly kept a family of mice in his White House bedroom ? (He called them his "little friends" and would leave crumbs for them.)

Did you know after his disastrous presidency, Johnson mounted a massive political comeback and in 1875, he became the first—and only—former president to be elected to the U.S. Senate ?

Did you know when Andrew Johnson was only three, his father Jacob died and his mother, Mary McDonough Johnson, remarried and later sent him and his brother out as indentured servants to a tailor named James Selby ? (The brothers ran away from their bond after two years. On June 24, 1824, Selby advertised in a newspaper a reward of $10 for anyone who would return the brothers to him. However, they were never captured.)