Today in World War II History—October 31, 1939 & 1944

Poster for the 1939 World’s Fair

Poster for the 1939 World’s Fair

80 Years Ago—October 31, 1939: British children are advised not to go “guising” (trick-or-treating) due to the blackout.

New York World’s Fair closes.

75 Years Ago—Oct. 31, 1944: Soviet forces trap German Army Group North in the Courland Peninsula of Lithuania for the rest of the war.

RAF Mosquito bombers destroy Gestapo Headquarters in Aarhus, Denmark, destroying records on the Danish Resistance.