Portal:History of science/Selected anniversaries/April 5
- 1622 - Birth of Vincenzo Viviani, Italian mathematician (d. 1703)
- 1804 - High Possil Meteorite: The first recorded meteorite in Scotland falls in Possil
- 1869 - Birth of Sergei Chaplygin, Russian physicist and engineer (d. 1942)
- 1872 - Birth of Samuel Cate Prescott, American food scientist and microbiologist (d. 1962)
- 1900 - Death of Joseph Louis François Bertrand, French mathematician (b. 1822)
- 1929 - Birth of Ivar Giaever, Norwegian physicist, Nobel laureate
- 1967 - Death of Hermann Joseph Muller, American geneticist, Nobel laureate (b. 1890)
- 1970 - Death of Alfred Henry Sturtevant, American geneticist (b. 1891)
- 1979 - Death of Eugène Gabritschevsky, Russian biologist and artist (b. 1893)
- 2004 - Death of Heiner Zieschang, German mathematician (b. 1936)