National History 1940-1949
 | 1940 - 1st Color Television |
| 1942 - Rosie the Riveter |
| 1942 - 1st controlled nuclear reaction |
| 1942 - Walt Disney releases "Bambi" |
| 1944 - Roosevelt re-elected |
| 1945 - Truman succeeds Roosevelt |
| 1945 - 1st general purpose computer developed |
| 1945 - 1st atomic bomb |
| 1946 - Atomic tests in the Pacific |
| 1947 - Carbon-14 dating |
| 1947 - 1st broad spectrum antibiotic |
| 1947 - 1st self-developing camera |
| 1947 - U.S. plane breaks the supersonic barrier |
| 1948 - Transistor invented |
World Events 1940-1949
| 1940 - Nazi Germany invades Norway, Denmark, Holland, Belgium, and Luxembourg |
| 1940 - Winston Churchill becomes Prime Minister of Great Britain |
| 1940 - The world's 1st helicopter takes flight |
| 1941 - Germany and Italy declare war on the United States |
| 1942 - The Holocaust begins |
| 1943 - Penicillin goes into common use for chronic diseases and streptomycin is invented |
| 1944 - D-Day |
| 1945 - U.S. bomb Hiroshima And Nagasaki |
| 1945 - World War II ends |
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