March 18 - World War II: 1,250 American bombers attack Berlin.
March 19 - World War II: Adolf Hitler orders that all industries, military installations, shops, transportation facilities and communications facilities in Germany be destroyed.
April 28 - Italian dictator Benito Mussolini and his mistress, Clara Petacci[?], are hanged upside down by Italian partisans as they attempt to flee the country.
May 7 - World War II: General Alfred Jodl signs unconditional surrender terms at Reims, France, ending Germany's participation in the war. The document will take effect the next day.
May 25 - In Atlantic, ships can finally keep their lights lit
May 28 - William Joyce, known as "Lord Haw-Haw" is captured. He is later charged with high treason in London for his English-language wartime broadcasts on German radio. He is hanged in January of 1946.
July 16 - The Trinity Test, the first test of an atomic bomb, using 6 kilograms of plutonium, succeeds in detonating, unleashing an explosion equivalent to that of 20 kilotons of TNT.
July 29 - The USS Indianapolis is hit and sunk by an I-58 Japanese submarine. Some 900 survivors jump into the sea and are adrift for 4 days. Nearly 600 die before help arrives. Captain Charles Butler MacVey III[?] is later court-martialed.
November - Assembly of the world?s first general purpose electronic computer, the Electronic Numerical Integrator Analyzer and Computer (ENIAC), is completed. It covers 1800 feet of floor space. The first set of calculations is run on the computer.
Bebop begins to emerge as popular style of jazz to contrast music of the big bands. Development of bebop is attributed in large part to trumpeter Dizzy Gillespie and alto saxophonist Charlie Parker