The Iran hostage crisis was a diplomatic crisis between Iran and the United States. Fifty-two US citizens were held hostage for 444 days from November 4, 1979 to January 20, 1981, after a group of Islamic students and militants took over the Embassy of the United States in support of the Iranian Revolution.
Sixty-six Americans were taken captive when Iranian militants seized the U.S. Embassy in Tehran on Nov. 4, 1979, including three who were at the Iranian Foreign Ministry. Six more Americans escaped and of the 66 who were taken hostage, 13 were released on Nov. 19 and 20, 1979; one was released on July 11, 1980, and the remaining 52 were released on Jan. 20, 1981.
Google chose John F. Kennedy:
Indeed, he had a moving speech. Google incorporated his famous quotes in their image.