1. George Washington's teeth weren’t made of wood. The truth was actually much worse.
Washington's dentures were in fact made of animal bone and human teeth. Some of those teeth may have come from people enslaved on Washington's Mount Vernon plantation.Public Domain
2. John Adams' last words are thought to be, "Thomas Jefferson still lives."
Adams believed that Jefferson, his friend, turned political rival, turned friend had outlived him. However, Jefferson himself had actually died just hours earlier.
What's more, both men died on July 4, 1826, exactly 50 years after the Continental Congress approved the Declaration of Independence. Public Domain
3. Thomas Jefferson was not only the primary author of the Declaration of Independence, but also a passionate inventor. In addition to the swivel chair, he also invented a "cipher wheel" to encode and decode messages and a roof system to capture rainwater.Public Domain
4. James Madison appeared on the $5,000 bill, which the government stopped printing in 1945 and discontinued for good in 1969.
The $500 bill (featuring William McKinley), the $1,000 bill (featuring Grover Cleveland), and the $10,000 bill (featuring Supreme Court Justice Salmon Chase) were also discontinued in 1969.National Numismatic Collection, National Museum of American History.
5. Like John Adams and Thomas Jefferson, Founding Father James Monroe died on July 4 — just five years later.
He's also the last president who was never photographed.Public Domain
6. John Quincy Adams started writing in his diaries around the age of 11, and recorded everything from his travels around the world, to his relationship with his family, to his political views.Public Domain
7. Andrew Jackson was the target of America's first presidential assassination attempt when Richard Lawrence fired a gun at him from just feet away on Jan. 30, 1835.
When the gun misfired, Lawrence pulled out a second weapon — which also misfired.
An enraged Jackson charged Lawrence with his cane. Both pistols were later found to be working just fine, which means the odds of them both misfiring were 125,000 to 1. Public Domain
8. Martin Van Buren's nickname, "Old Kinderhook," (a reference to his hometown of Kinderhook, New York) helped lead to the expression "OK." When Van Buren ran for president, OK Clubs popped up around the country. Voters who gave him the "OK" were giving him a stamp of approval.
Van Buren was also the first president to be born in the United States of America, as his predecessors had been born before the American Revolution.Public Domain
9. Harrison became known as the "log cabin and hard cider" candidate after a newspaper sneeringly stated: "Give [Harrison] a barrel of hard cider and settle a pension of two thousand a year on him, and take my word for it, he will sit the remainder of his days in his log cabin."
His avid supporters adopted the insult as their own and helped Harrison win the White House. Unfortunately, he died after just a month in office. Public Domain
10. John Tyler, born in 1790, still has a living grandson. Public Domain
11. After being nominated on the ninth ballot at the Democratic convention, Polk's Whig opponents sneered: "Who is James K. Polk?"
Though some historians have dismissed him as inconsequential, Polk oversaw major events like the Mexican-American War and the establishment of the Canada-US border at the 49th parallel.Public Domain
12. When Zachary Taylor died in 1850, doctors declared he'd succumbed to cholera morbus after consuming cherries and iced milk. In 1991, however, his body was exhumed to see if he'd actually died from arsenic poisoning.
An investigation found only small amounts of arsenic in his remains.Public Domain
13. A Yale professor once remarked that "to discuss...Millard Fillmore is to overrate [him]."
And with that, we give you no Fillmore facts.
14. When he left office in 1857, Pierce allegedly remarked: "There’s nothing left to do but get drunk."
He died of cirrhosis of the liver in 1869.Public Domain
15. A lifelong bachelor, James Buchanan had a close friendship with Alabama Senator William Rufus King, with whom he lived for 13 years.
Their friendship drew attention even in their day, and prompted Andrew Jackson to call the two "Miss Nancy and Aunt Fancy." Public Domain
16. Abraham Lincoln signed a bill creating the Secret Service on April 14, 1865, the day he was shot and killed by John Wilkes Booth.
That said, the Secret Service was originally part of the Treasury Department, and did not start protecting the president until 1901.Public Domain
17. The first impeached president and one of America's worst presidents for his failures during Reconstruction, Johnson nevertheless considered himself a devout patriot. He was buried wrapped in an American flag with a copy of the Constitution underneath his head.Public Domain
18. Ulysses S. Grant was actually born Hiram Ulysses Grant. When he applied to West Point, however, a clerical error spelled his name as U.S. Grant — and the rest is history.Public Domain
19. Hoping to court anti-alcohol Prohibitionists, Rutherford B. Hayes banned liquor at the White House (his wife, a lifelong teetotaler, was known as "Lemonade Lucy"). But the presidential couple did make some exceptions to their rule when they hosted visiting dignitaries. Public Domain
20. One of Charles Guiteau's shots grazed James Garfield's arm; the other lodged near his pancreas. Doctors couldn't locate the second bullet, though Alexander Graham Bell tried to find it with an early version of a metal detector. Garfield succumbed to his wounds in September 1881.
More than a century later his spine — bullet hole and all — was put on display by the National Museum of Health and Medicine.Public Domain
21. In order to raise money for new furniture, Chester A. Arthur sold 24 wagons worth of White House items, including a pair of Abraham Lincoln's pants and a hat owned by John Quincy Adams. Public Domain
22. Grover Cleveland was elected in 1884, defeated in 1888, and re-elected in 1892. That makes him the 22nd and the 24th president.Public Domain
23. Benjamin Harrison was the grandson of William Henry Harrison.
His fellow Republicans supported him with the slogan “The Same Old Hat – It Fits Ben Just Right.” Democrats responded with their own slogan: “His Grandfather’s Hat – It’s Too big for BEN.”
Though Benjamin Harrison survived his term, unlike his grandfather, he lost his reelection bid to Cleveland.Public Domain
24. When Grover Cleveland was 49, he married 21-year-old Frances Folsom at the White House — the only presidential White House wedding in history. He and Frances also made history when their daughter Esther was born at the White House. So far, she's the first and only presidential White House baby.Public Domain
25. William McKinley often wore a red carnation on his lapel for good luck.
At the 1901 Pan-American Exposition, he gave his carnation away to a little girl.
Moments later, he was assassinated by Leon Czolgosz.Public Domain
26. Theodore Roosevelt was boxing with his aide, Col. Daniel T. Moore, when Moore hit the president hard in the eye, causing permanent damage.
But Roosevelt didn't stop boxing, and Moore didn't learn about the injury until he read about it in the newspaper almost a decade later. Public Domain
27. On April 14, 1910, William Howard Taft threw out the ceremonial first pitch at a game between the Washington Senators and the Philadelphia Athletics.
Taft threw the ball to a pitcher — not the catcher like today — and returned the next year to throw the pitch again.
Though Taft skipped the ceremony in 1912 because of the sinking of the Titanic, the tradition was picked up by his successor, Woodrow Wilson.Library of Congress
28. Not only is Woodrow Wilson buried in D.C., but he's interred at the National Cathedral. His wife, Edith, felt that it was an appropriate resting place because her husband had done his most important work in the nation's capital. The National Cathedral also sought to be a place where the "heroes of democracy" could be celebrated. Public Domain
29. For about a decade before his presidency, Warren G. Harding penned elaborate, explicit love letters — often on official Senate stationary — to his mistress, Carrie Fulton Phillips.
In one letter he wrote: "There is one engulfing, enthralling rule of love, the song of your whole being which is a bit sweeter — the ‘Oh Warren! Oh Warren!’ When your body quivers with divine paroxysm and your soul hovers for flight with mine.”Public Domain
30. Calvin Coolidge was famously a man of few words. When a woman at a dinner party bet that she could get him to say three words, he purportedly told her: "You lose."
Coolidge was also taciturn when he announced that he would not run for reelection, handing the press pieces of paper which read: "I do not choose to run for president in 1928." Public Domain
31. Herbert Hoover's White House physician Adm. Joel T. Boone came up with Hoover-Ball around 1928 to keep the president fit. "It required less skill than tennis, was faster and more vigorous, and therefore gave more exercise in a short time," Hoover wrote of the sport.
The Hoover Presidential Library Association, alongside, the city of West Branch, Iowa, hosts a Hoover-Ball competition every year. Herbert Hoover Presidential Library and Museum
32. Franklin Roosevelt starting collecting stamps around the age of eight. When he was diagnosed with polio, the hobby helped him pass the time, and he amassed a collection of one million stamps in his lifetime.National Postal Museum
33. Harry S Truman survived an assassination attempt in 1950 when two Puerto Rico nationalists tried to attack him while he was staying at the Blair House. With Truman upstairs, the would-be assassins exchanged fire with Truman's guards, fatally wounding White House Police officer Leslie Coffelt.Public Domain
34. Infuriated by the squirrels who dug up the new putting green outside the Oval Office, Dwight D. Eisenhower told his valet: “The next time you see one of those squirrels go near my putting green, take a gun and shoot it!"
However, groundskeepers chose to trap the squirrels instead and release them in Rock Creek Park. Public Domain
35. A huge James Bond fan, John F. Kennedy once tried to write his own spy thriller — about a coup d'état organized by his vice president, Lyndon B. Johnson. Public Domain
36. Not only did Lyndon B. Johnson called his penis Jumbo, but he earned a reputation for waving it around. In the bathroom he was known for shouting: “Woo-eee, have you ever seen anything as big as this?” And once, when questioned by reporters why the U.S. was in Vietnam, Johnson pulled out his penis and said: "This is why!"Public Domain
37. In addition to the piano, Richard Nixon could also play the saxophone, clarinet, accordion, and violin.Los Angeles Times Photographic Collection at the UCLA Library
39. A center and a linebacker on the University of Michigan football team, Gerald Ford received offers from two NFL teams when he graduated in 1935: the Detroit Lions and Green Bay Packers. Ford turned them down and applied to law school. Gerald R. Ford Library
40. Jimmy Carter's two-bedroom house in Plains, Georgia, is valued at just $167,000 — less than a Secret Service vehicle.Public Domain
41. Ronald Reagan started eating jelly beans to wean himself from pipe smoking, and never stopped. At the White House, the Herman Goelitz Candy Company provided jelly beans during Reagan's two terms in office.Ronald Reagan Presidential Library and Museum
41. During the so-called Chichijima Incident in WWII, George H.W. Bush and his fellow pilots were shot down near Japan's Chichijima Island. But while Bush landed in the water, eight others were captured by the Japanese, tortured, and killed. Some were even cannibalized. Public Domain
42. As a young man, Bill Clinton lined the back of his El Camino with astro turf. “You don’t want to know why,” he once said with a sly grin, “but I did.”
Clinton later tried to walk back the comment, stating: "It wasn't for what everybody thought it was for when I made the comment, I'll tell you that. I'm guilty of a lot of things, but I didn't ever do that."Public Domain
43. George W. Bush was head cheerleader at Phillips Academy during his senior year of high school, and continued his cheerleading career while at Yale. George W. Bush Presidential Center
44. When Barack Obama lived in Indonesia as a child, his family owned a number of exotic pets including alligators, a turtle, and an ape named Tata.Public Domain
45. A satirical magazine once sent checks for 13 cents to some of the world’s richest people as a prank just to see who would cash them. Only two did: A Saudi arms dealer and Donald Trump.Public Domain
46. Joe Biden was a star football player at at Delaware’s Archmere Academy. During his senior year in 1960, he was a leading scorer on the team. Decades later, his coach recalled that Biden "was one of the best pass receivers I had in 16 years as a coach.”Public Domain