Friday, Donald Trump will be inaugurated as the 45th president of the United States. Presidential inaugurations are a tradition that stretch back to George Washington and the start of the nation. Despite the continuity over the centuries, there have been changes and outliers throughout the years.
44: Number of presidents.
43: Number of people who have served as president.
57: Number of formal presidential swearing-in ceremonies. Friday will be the 58th.
135: Number of words in George Washington's inaugural address, the shortest to date.
8,455: Number of words in William Henry Harrison's inaugural address, the longest to date.
President-elect Donald Trump picked "America's Got Talent" star Jackie Evancho to sing the national anthem at his Jan. 20 inauguration. Here's a list of the previous singers who sang at the past 10 presidential inaugurations. (Dec. 14, 2016)
30: Number of days William Henry Harrison survived after giving a two-hour inaugural address without a hat or coat in the rain.
1800: The year a president, John Adams, first moved into the White House. The building was still unfinished when Adams was replaced by incoming president Thomas Jefferson.
1817: James Monroe is the first to inhabit the White House after it is burned to the ground by British troops during the War of 1812.
2: Number of Bibles used to swear in Harry Truman, Dwight D. Eisenhower and George H.W. Bush.
6: Number of inaugurations that took place outside of Washington D.C. Presidents inaugurated elsewhere include George Washington in New York City and Philadelphia, John Adams n Philadelphia, Chester A. Arthur in New York City, Theodore Roosevelt in Buffalo, Calvin Coolidge in Plymouth and Lyndon Baines Johnson in Dallas.
4: Number of retiring presidents who skipped the inaugurations of their successors: John Adams, John Quincy Adams, Andrew Johnson and Richard Nixon.
400: Number of gallons of oysters eaten at James Buchanan's inauguration party.
14: Number of balls in his honor attended by Bill Clinton on his inauguration.
42: Age of Theodore Roosevelt when sworn in, the youngest to date.
1.8 million: The number of attendees at Barack Obama's first inauguration. The greatest number to date. More than 21 million people streamed the inauguration on CNN's website, a record number of internet viewers for the channel