After how many days of captivity did Iran release the 52 American hostages on January 20, 1981?

According to legend, no one was allowed to ride the horse Babieca after which Spanish hero died in 1099? After his release from federal prison in 1939, which gangster, too ill to regain control of the Chicago mob, retired to… After whose speech at the 1896 national convention did the Democrats come out in favor of silver? After whose troops entered Warsaw in 1806 did Poland exist as the Grand Duchy of Warsaw? After which failed 1857-58 uprising was the last Mughal emperor of India exiled to Burma? Which onetime Beale Street "blues boy" played a reported 342 one-night stands in 1956? After which painting went missing from the Louvre in 1911 did people line up just to see the empty space? After which pirate, also known as Edward Teach, was killed in 1718 was his head taken to Virginia and displayed on a po…