80 Years Ago—September 6, 1939: German troops take Kraków, Poland.
Britain institutes convoys for shipping between the Firth of Forth and the Thames Estuary.
75 Years Ago—Sept. 6, 1944: Germany launches first V-2 in combat, toward the Paris suburbs; the V-2 is the world’s first true rocket. (Read more: “The Moon Landings—The World War II Connection”)
Britain announces relaxation of blackout regulations; lifted to dim-out with blackout only when the air raid alarm is sounded.