Template:Selected anniversaries/April 26
1798: Artist Eugène Delacroix born. His use of expressive brushstrokes and his study of the optical effects of color will shape the work of the Impressionists.
1945: Field Report Number One (Peenemunde edition) accidentally released new class of crimes against mathematical constants.
1920 – Srinivasa Ramanujan, Indian mathematician and theorist (b. 1887)
https://en.wikipedia.org/wiki/Owen_Willans_Richardson
1900 – Charles Francis Richter, American seismologist and physicist (d. 1985)
1951 – Arnold Sommerfeld, German physicist and academic (b. 1868)
1803 – Thousands of meteor fragments fall from the skies of L'Aigle, France; the event convinces European scientists that meteors exist.
1962 – NASA's Ranger 4 spacecraft crashes into the Moon.
1986 – A nuclear reactor accident occurs at the Chernobyl Nuclear Power Plant in the Soviet Union (now Ukraine), creating the world's worst nuclear disaster.