1940s

1920s - 1930s - 1940s - 1950s - 1960s - 1970s - 1980s - 1990s - 20th century

• World War II
• First nuclear bomb
• Independence for some former colonies

Year in Review, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949