Portal:History of science/Selected anniversaries/September 29
- 1561 - Birth of Adriaan van Roomen, Flemish mathematician (d. 1615)
- 1803 - Birth of Jacques Charles François Sturm, French mathematician (d. 1850)
- 1901 - Birth of Enrico Fermi, Italian physicist, Nobel laureate (d. 1954)
- 1920 - Birth of Peter D. Mitchell, English chemist, Nobel laureate (d. 1992)
- 1931 - Birth of James Watson Cronin, American nuclear physicist, Nobel laureate
- 1957 - 20 MCi (740 petabecquerels) of radioactive material is released in an explosion at the Soviet Mayak nuclear plant at Chelyabinsk
- 2004 - The asteroid 4179 Toutatis passes within four lunar distances of Earth