Four Iranian diplomats were kidnapped after they were stopped at a checkpoint in northern Lebanon by Lebanese Phalange forces; their fates remain unknown.
William Shockley announced the invention of the junction transistor, for which he, John Bardeen, and Walter Houser Brattain later won the Nobel Prize in Physics.
The aircraft carrying Władysław Sikorski, prime minister of the Polish government-in-exile, crashed off Gibraltar, killing him and fifteen others and leading to several conspiracy theories.