Franklin Pierce, in March 1853, became the only president to "affirm" instead of "swear" that he would protect and defend the Constitution. There are Internet mentions suggesting that Herbert Hoover also opted to affirm, but the Herbert Hoover Presidential Library Association in Iowa says Hoover did not repeat the oath in 1929, and simply said "I do" after it was read to him.
Q: Does the chief justice of the United States always administer the oath?
A: Traditionally, it is the chief justice who presides over the swearing-in ceremony. But there have been about a half-dozen exceptions including in 1923 and 1963.
In 1923, Vice President Calvin Coolidge took the oath of office at his father's residence in Plymouth, Vt., following the death of President Warren Harding. Coolidge's father, Col. John Coolidge, was a notary public and he administered the oath to his son.
In 1963, Sarah Hughes, a U.S. district judge in Texas, administered the oath to Vice President Lyndon Johnson aboard Air Force One at Love Field in Dallas, after the assassination of President John F. Kennedy. Hughes became the first woman to swear in a president.
Q: When was the parade first started?