Mean Temp 17.2°C 62.96°F at Taegu
May 10, 1950 (Wednesday)
- The Pilot ACE, a digital computer designed by Alan Turing, successfully ran its first program, a routine called "successive digits" or "suck digs" that would turn on console lights one by one.
- Dumarsais Estimé was overthrown as President of Haiti in a military coup organized by Paul Magloire. Franck Lavaud served for seven months as Chairman of the Military Executive Committee until December 6, when Magloire became President.
- Ir. J. Poetoehena was sworn in as the last Prime Minister of the State of East Indonesia, serving until August, when the state was incorporated into the Republic of Indonesia with President .
- Died: John Gould Fletcher, 64, American poet, 1939 Pulitzer Prize winner