Hafele–Keating experiment – Two atomic clocks flew twice around the world, eastward and westward. Back at home, they each showed different times
Harold Holt – the 17th Prime Minister of Australia, disappeared in December 1967 and still hasn’t been found
Warner/Chappell Music company charged $5,000 a day for public use of the song “Happy Birthday to You”
Jesús García – Mexican railroad brakeman who died while preventing a train loaded with dynamite from exploding near Nacozari, Sonora
Infinite monkey theorem – a monkey hitting keys at random on a typewriter keyboard will almost surely write the complete works of William Shakespeare