General fact: 164 is the atomic number of an element temporarily called Unhexquadium.
Mathematical fact: 164 is a zero of the Mertens function.
Trivia: 164 is the number of episodes that the TV show The Adventures of Rin Tin Tin ran on ABC from 1954 to 1959.
Historical date: June 12th is the day in 1987 that the Central African Republic's former Emperor Jean-Bédel Bokassa is sentenced to death for crimes he had committed during his 13-year rule.