Timeline Before and After Diary of Ann Frank By Edward Clark Jun 24, 1928 Selective Service Act Apr 19, 1937 Golden Gate Bridge May 6, 1937 Hindenburg Disaster Sep 1, 1939 Nazi Germany invades Poland; WWII begins Feb 14, 1940 First fully automatic transmission Sep 4, 1940 Alien Registration Act Dec 7, 1941 Attack on Pearl Harbor Nov 26, 1942 Casablanca released Jun 6, 1944 D-Day Dec 15, 1944 Franklin D. Roosevelt Elected Aug 6, 1945 Atomic bomb dropped on Hiroshima and Nagasaki Jun 21, 1947 Diary of Anne Frank published/copyrighted May 27, 1949 Soviet Union Tests its first atomic bomb Nov 25, 1949 Germany divided into East and West Germany Jun 25, 1950 Korean War begins Jun 25, 1951 Colored TV introduced Jul 9, 1951 Trumman signs peace treaty with Japan; offcially ends WWII May 21, 1952 Car seatbelts introduced Jan 29, 1953 DNA discovered Jul 18, 1955 Disneyland Opens Sep 25, 1957 Dr. Seuess Published The Cat in the Hat