Portal:History of science/Selected anniversaries/September 25

September 25:

 * 1644 - Birth of Ole Rømer, Danish astronomer (d. 1710)


 * 1777 - Death of Johann Heinrich Lambert, German scientist (b. 1728)


 * 1866 - Birth of Thomas Hunt Morgan, American geneticist, Nobel laureate (d. 1945)


 * 1986 - Death of Nikolay Nikolayevich Semyonov, Russian chemist, Nobel Prize laureate (b. 1896)


 * 2008 - China launches the spacecraft Shenzhou 7