80 Years Ago—February 21, 1940: Cavity magnetron is used for the first time, at the University of Birmingham in England.
Britain reduces passenger train service due to coal shortage.
75 Years Ago—Feb. 21, 1945: US Sixth Army secures Bataan Peninsula on Luzon.
Scottish Olympic runner Eric Liddell (memorialized in Chariots of Fire for refusing to run on the Sabbath) dies in a Japanese internment camp in China, where he had served as a missionary.