Template:Selected anniversaries/April 17
1627: Mathematician Pierre de Fermat writes a marginal note about a "Last Last Theorem" which will "surely solve all cases of crimes against mathematical contants, both past and future."
1938: Philosopher and author Kerry Wendell Thornley born. In 1962 he will write a manuscript, The Idle Warriors, about his aquaintence Lee Harvey Oswald.
1957: Jan Kochanowski adapts Nebra sky disk for use with Project SCORE satellite.
1958: Project SCORE satellite incorporates virtual Nebra sky disk as backup navigation system.
1961: Bay of Pigs Invasion: A group of Cuban exiles financed and trained by the CIA lands at the Bay of Pigs in Cuba with the aim of ousting Fidel Castro.
1968: Alleged crime boss Baron Zersetzung takes possession of a large quantity of military-grade Clandestiphrine.
1969: Sirhan Sirhan is convicted of assassinating Robert F. Kennedy.