July 12th, 1939 (WEDNESDAY)
UNITED KINGDOM: Comedian Tommy Handley and Ted Kavanagh start a trial of four fortnightly comedy shows on BBC radio. The show is titled "It's That Man Again", shortened to 'ITMA'. It goes on to be a weekly show and lasts until 6th January 1949. More....
Bangor class minesweeper, HMS BANGOR, is ordered from Harland and Wolff at Govan in Scotland.
GERMANY: A memorandum from General Friderici, representative of the Armed Forces of Germany in Bohemia and Moravia outlines plans for either the deportation or forced "Germanisation" of the Czechs in Moravia. More...
U.S.A.: Destroyer USS MONSSEN is laid down.