80 Years Ago—January 17, 1940: In Paris, Polish cryptographer Marian Rejewski breaks the German Luftwaffe Enigma code.
75 Years Ago—Jan. 17, 1945: Soviets take Warsaw.
Swedish diplomat Raoul Wallenberg, who saved tens of thousands of Jews, is detained by the Soviets in Budapest, Hungary and disappears.
Nazis lead 66,000 prisoners from Auschwitz on a death march to Germany.