With Presidents’ Day nearing, it’s important to take a moment and reflect on those who served as the chief executive of our country. And while you may be well-versed in textbook facts about each president, you may have never heard of some of their pet peeves, quirks, and pastimes.

For example, did you know Abraham Lincoln was a near-undefeated wrestler? And Calvin Coolidge, our 30th president, liked having his scalp massaged with petroleum jelly while he enjoyed breakfast in bed?

To identify the weirdest fact about every president, the team at 24/7 Wall St. researched a slew of sources, including the official website of the White house whitehouse.gov, biographies from biography.com, San Francisco-based public media outlet KQED, The History Channel’s website history.com, National Public Radio (NPR), the Smithsonian magazine, and an online library of facts called FactRetriever.

Click here to read a weird fact about every U.S. president.