Also on This Day in History April 15
Discover what happened on April 15 with HISTORY's summaries of major events, anniversaries,
famous births and notable deaths.
Births on This Day, April 15
-
1902
Samuel K. Hoffman
American engineer who led the development of the liquid fuel rocket engines used in America's early space programs.
-
1896
Nikolay Nikolayevich Semyonov
Russian physical chemist who shared the 1956 Nobel Prize for Chemistry with Sir Cyril Hinshelwood for “their researches into the mechanism of chemical reactions.”
-
1793
Friedrich Georg Wilhelm von Struve
German-Russian astronomer, one of the greatest 19th-century astronomers and the first in a line of four generations of distinguished astronomers.
-
1800
James Clark Ross
British naval officer who carried out important magnetic surveys in the Arctic and Antarctic and discovered the Ross Sea and the Victoria Land region of Antarctica.
-
1858
Émile Durkheim
French sociologist whose recognition as “father of sociology” rests on his pioneering works and influence on a generation of scholars.
Deaths on This Day, April 15
-
1704
Johan van Waveren Hudde
Dutch mathematician and statesman who, after an education in law, became interested in mathematics, though for a limited time (1654-63).
-
2020
John Houghton
Welsh metereologist who began in the late 1960s drawing attention to the buildup of carbon dioxide in the earth’s atmosphere and its result of global warming, now known as the greenhouse effect.
-
1935
Charles Frederick Cross
English chemist who, with Edward Bevan and Clayton Beadle, discovered cellulose could be produced (1891) by the dissolution of cellulose xanthate in dilute sodium hydroxide.
-
1819
Oliver Evans
American millwright and inventor who designed the first automatic corn mill (patented 18 Dec 1790), pioneered the high-pressure steam engine, and created the first continuous production line (1784).
-
1894
Jean Charles Marignac
Swiss chemist whose life work consisted of making many precise determinations of atomic weights suggested the possibility of isotopes and the packing fraction of nuclei.