(CNN) - The oath, the speech, the crowds, the celebrities, the balls. Every four years Washington celebrates the start of another presidential term. By the numbers, here's a look at presidential inaugurations.
Jan. 20, 2013 -- The date President Barack Obama will be sworn-in to his second term. The public ceremony will be held on Monday, Jan. 21.
7 -- The number of times the constitutionally-mandated inauguration date has fallen on a Sunday.
56 -- Number of formal presidential inaugural ceremonies held since 1789. (Obama's upcoming inauguration will be the 57th.)
69 -- Number of times the U.S. president has taken the oath of office.
Up to 800,000 -- Estimated number of people that will attend sident Obama's second inauguration.
More than 1.8 million -- Estimated number of people that attendedObama's first inauguration on Jan. 20, 2009.
1789 -- Date of the first presidential inauguration, that of George Washington. It was held at Federal Hall in New York City.
6 -- The number of times the president has been inaugurated or sworn-in outside of Washington.
135 -- Number of words in George Washington's second inaugural address, the shortest on record.
8,445 -- Number of words in William Henry Harrison's inaugural address in 1841, the longest on record. Harrison died one month after his inauguration, possibly from prolonged exposure to bad weather during his swearing-in.
$4 -- The cost to attend the first inaugural ball, held in 1809 for President James Madison.
1821 -- The first year that the presidential inauguration fell on a Sunday. President James Monroe consulted with the Supreme Court and agreed that ceremonies would be held on Monday.
1901 -- The first year that the House of Representatives was involved in preparations for the inauguration. Since that date the Joint Congressional Committee on Inaugural Ceremonies has organized the inaugural ceremonies.
4 -- The number of outgoing presidents who did not attend the inauguration of their successors.
1857 -- James Buchanan's inauguration is believed to be the first to be photographed.
1897 -- The inauguration of William McKinley is the first to be recorded by motion picture cameras.
1949 -- President Harry Truman's inauguration is the first shown on television.
1997 -- The inauguration of President Bill Clinton is the first broadcast live on the Internet.
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