George Washington became the first president of the United States in 1789 and held the job for two terms. His vice president, John Adams, took over in 1797 and became the first sitting president to live in the White House.
Three presidents died on Independence Day: James Monroe, Thomas Jefferson and John Adams. The latter two died within hours of each other in 1826.
Three presidents married while in office: John Tyler, Woodrow Wilson and Grover Cleveland. James Buchanan, the 15th president, remains the only president who was never married. John Quincy Adams was the only President to have a son get married at the White House.
Four presidents died from assassination: Abraham Lincoln, James Garfield, William McKinley and John F. Kennedy. Another four presidents died in office of natural causes: Franklin D. Roosevelt, William Henry Harrison, Zachary Taylor and Warren G. Harding.
From Ulysses S. Grant until Chester A. Arthur, every president had a beard, which was the common fashion of the day. Grover Cleveland wore only a mustache, which broke the string.
Ex-Screen Actor's Guild president Ronald Reagan was the only president to serve as commander-in-chief and previously serve as the president of a labor union. Bill Clinton's administration saw the construction of the first White House website, launched in 1994.