Today in World War II History—Sept. 3, 1941

Labels taken from canisters of Zyklon B from Dachau, used as evidence at the Nuremberg Trials (US National Archives)

75 Years Ago—Sept. 3, 1941: First experimental use of gas chambers at Auschwitz, using Zyklon-B.

Soviets begin rounding up ethnic Germans in USSR; by January 1942, 800,000 will be sent to Siberia.

Trial begins for 33 German spies in Duquesne ring, in Brooklyn NY.