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SEPTEMBER 23

1819 Armand-Hippolyte-Louis Fizeau (French Physicist, First to Correctly Measure the Speed of Light) French Mathematicians & Scientists Physics Light
1852 William Stewart Halsted (New York City-born Medical Researcher) William Steward Halsted Medical Research Cardiovascular System
1861 Robert Bosch (German Engineer, Industrialist) German Mathematicians & Scientists
1863 Alexandre Yersin (Swiss Bacteriologist) Swiss Mathematicians & Scientists Disease
1880 John Boyd Orr (Scottish Physician; 1949 Nobel Laureate for Peace) Scottish Mathematicians & Scientists Foods and Nutrition 1949 Nobel Laureate for Peace
1915 Clifford G. Shull (Pennsylvania-born Physicist; 1994 Nobel Laureate for Physics) Pennsylvania Mathematicians & Scientists Sub-atomic Particles 1994 Nobel Laureate for Physics
John C. Sheehan (Michigan-born Inventor of Synthetic Penicillin) Michigan Mathematicians & Scientists Medical Research Inventors Hall of Fame
Deaths
Persons of Historic Significance Who Have Died on This Date
1928 Erik Lindblom (Alaskan Gold Prospector) Alaska Gold
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1846 German Astronomer Johann Galle Discovers the Planet Neptune German Scientists & Mathematicians Space & Astronomy Neptune New York Times
1857 William Markoe Makes Minnesota's First Balloon Ascension, Traveling from St. Paul to Cannon Falls Minnesota Hot Air Balloons Historic Firsts Minnesota Historical Society
1884 Seattle, Washington's First Horse-Drawn Streetcars Are Placed into Service Seattle, Washington Transportation Horses Historic Firsts History Link
Herman Hollerith Patents a Punch Card Adding Machine Trademarks & Patents History of Technology CIO Magazine
1897 The Library of the Ramsey County Minnesota Medical Society Is Established by a Donation From Dr. Eduard Boeckmann Ramsey County, Minnesota Medicine Libraries and Reference Resources Minnesota Historical Society
1909 A Luxurious Sanitary Toilet Comfort Station Opens in Seattle, Washington's Pioneer Square Seattle, Washington Health Care History Link
1930 Johann Ostermeyer Patents First Modern Photographic Safety Flash Bulb German Scientists & Inventors Trademarks & Patents Photography Historic Firsts U.S. Patent and Trademark Office
1938 In West Virginia, the Mingo County Oak, Estimated to Date Before the Arrival of Christopher Columbus in the Americas, Is Cut Down Mingo County, West Virginia Oak Trees Christopher Columbus West Virginia State Archive
1940 Vancouver, Washington's Alcoa Plant Produces the First Aluminum Ingots in the Western United States Vancouver, Washington Aluminum Historic Firsts Alcoa History Link
1949 President Truman Announces Soviets Have Exploded a Nuclear Bomb Soviet Union Harry Truman The Cold War Nuclear Weapons PBS
1951 Britain's King George VI Has Operation to Remove Part of His Lung Great Britain George VI Health Care BBC
1954 President Dwight D. Eisenhower Dedicates the McNary Dam on the Columbia River Oregon Washington President Dwight D. Eisenhower Columbia River McNary Dam History Link
1986 U.S. Congress Adopts the Rose as the National Flower U.S. Symbols U.S. Department of Defense
1999 NASA's Mars Climate Observer Burns Up As It Goes into Planet Orbit Mars Exploration Space Exploration NASA New York Times

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