1937

President Franklin D. Roosevelt was sworn in for his second term as president, becoming the first chief executive to be inaugurated on Jan. 20.

1961

In his inaugural address, President John F. Kennedy urged Americans, “ask not what your country can do for you – ask what you can do for your country.”

1981

Iran released 52 Americans held hostage for 444 days, minutes after the presidency passed from Jimmy Carter to Ronald Reagan.

1986

The United States observed the first federal holiday honoring civil rights leader Martin Luther King Jr.