The first interracial kiss on TV took place in a 1968 “Star Trek” episode when Captain Kirk kissed Lt. Uhura.

The word muscle comes from the Latin for “little mouse,” which is what biceps looked like to the early Romans.

Before The Peter Principle (by Laurence J. Peter) was published in 1969, it was rejected by 30 publishers. It eventually sold 10 million copies in 40 languages.