Pellets of plutonium, 1945 (US Department of Energy)
75 Years Ago—Feb. 23, 1941: Dr. Glenn Seaborg & Dr. Arthur Wahl chemically identify new element of plutonium at University of California, Berkeley; discovery kept secret until after the war. Greece agrees to allow British soldiers to help defend Greece from Italians.
Published on February 23, 2016 01:00