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March 20 Major Events in World History

March 20, 2026
1854 On 20 March 1854, political opponents of slavery organize the first meeting of the United States Republican Party in Ripon, Wisconsin, forming a new party dedicated to ending slavery’s expansion.
2003 The United States and coalition invade Iraq on 20 March 2003, beginning the Iraq War aimed at toppling Saddam Hussein’s regime.
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March 8: Major Events in World History

March 8, 2026
9. 1775 Thomas Paine publishes the essay 'African Slavery in America', one of the earliest printed attacks on slavery in the American colonies, arguing for emancipation and condemning human bondage.
10. 1782 The Gnadenhütten massacre occurs when ninety‑six Christian Lenape Native Americans are killed by Pennsylvania militia, becoming one of the most notorious episodes of violence in colonial America.
24. 1965 United States Marines land at Da Nang in South Vietnam, marking the first major deployment of American ground combat troops in the Vietnam War.

March 8 in Science History: Discoveries, Scientists and Breakthroughs

March 8, 2026
3. 1746 French botanist André Michaux is born on March 8, 1746. He later explored North American flora, founded botanical gardens, and published influential works whose plant specimens and observations became major references in nineteenth-century botany .
6. 1804 Alvan Clark is born on March 8, 1804. The American astronomer and telescope maker helped build world-class refractors and discovered Sirius B in 1862 while testing optics, proving the precision and scientific value of his instruments.
10. 1839 Josephine Cochrane is born on March 8, 1839. The American inventor later patented the first practical dishwasher using water jets, transforming domestic technology and establishing the basis for the modern dishwashing appliance industry.
11. 1839 James Mason Crafts is born on March 8, 1839. The American chemist later co-discovered the Friedel–Crafts reaction, a crucial organic synthesis method that became foundational in aromatic chemistry and petrochemical manufacturing.
16. 1874 Julius Kahn is born on March 8, 1874. The American engineer invented the Kahn system of reinforced concrete, a structural method that improved strength and became influential in industrial and commercial construction.
18. 1886 Edward C. Kendall is born on March 8, 1886. The American biochemist isolated important adrenal and thyroid hormones, including cortisone, and later shared the Nobel Prize for research that transformed endocrine medicine.
24. 1922 Ralph H. Baer is born on March 8, 1922. The German-American engineer later built the first home video game console, the Magnavox Odyssey, and helped establish the global home video game industry.
25. 1928 Martin Davis is born on March 8, 1928. The American mathematician became a pioneer of computability theory, co-developed the Davis–Putnam algorithm, and helped solve Hilbert’s tenth problem through the MRDP theorem.
27. 1975 Emory Chaffee dies on March 8, 1975. The American physicist and engineer contributed to high-frequency radio generation, vacuum tube development, and early transmitter technologies that shaped radio communications.
All names in this article
Alvan Clark André Michaux Beatrice Shilling César Lattes Edward C. Kendall Emory Chaffee George A. Olah George Chrystal George K. Batchelor Gregorio Y. Zara Herbert Kroemer Hulusi Behçet James Mason Crafts Johannes Kepler John Elder John Fothergill Josephine Cochrane Julius Kahn Karl Ferdinand von Gräfe Karl von Goebel Martin Davis Otto Hahn Piotr Lebedev Ralph H. Baer Sir Michael Foster Sir William Stirling Hamilton Yakov Zel’dovich Beijing China Easter Island Japan North America Rome Russia United Kingdom Cambridge’s Physiology Department Harmonices Mundi Halley’s Comet Io Jupiter Moon Sirius B Sun Nuclear Fission Compact Disc Dishwasher Kerosene Lamp Magnavox Odyssey Videophone Friedel–Crafts Reaction Neutrino Mixing Angle Theta-13 Sunyaev–Zeldovich Effect Third Law of Planetary Motion Daya Bay Reactor Neutrino Experiment International Space Station Space Shuttle Discovery STS-102 Voyager 1