January 30, 1950 (Monday)
- North Korea Chairman, Kim Il-sung, was informed that Soviet leader Joseph Stalin had decided to support Kim's plan for an invasion of South Korea. Stalin provided the message to Kim by way of Soviet envoy Terenti Shtykov, after having met with Chinese leader Mao Zedong in Moscow.
- A simulator of the Automatic Computing Engine (ACE) was first demonstrated by Michael Woodger at the Burlington House in London for the jubilee celebration of the National Physical Laboratory. The first program would be run on May 10, 1950.
- The NBC TV show Robert Montgomery Presents, a live television dramatic anthology, made its debut with the secondary name Your Lucky Strike Theatre. The first hour-long show was "The Letter", starring Madeleine Carroll.
- Born: Andrei Bolibrukh, Russian Soviet mathematician, in Moscow (d. 2003)
E.W. Kenworthy to William Batt, Jr., referencing Capt. Martin, reassignment, he tells Bill, that if the transfer was for the reason indicated, because he was colored, it was against policy.
Songs of the week
- Dear Hearts and Gentle People - Bing Crosby
- The Old Master Painter - Richard Hayes
- A Dreamerís Holiday - Perry Como
- Take Me in Your Arms and Hold Me - Eddy Arnold