Portal:History of science/Selected anniversaries/April 7
- 1521 - Ferdinand Magellan arrives at Cebu
- 1727 - Birth of Michel Adanson, French botanist (d. 1806)
- 1761 - Death of Thomas Bayes, English mathematician (b. 1702)
- 1789 - Death of Petrus Camper, Dutch anatomist (b. 1722)
- 1823 - Death of Jacques Charles, French chemist (b. 1746)
- 1936 - Birth of Jean-Pierre Changeux, French neuroscientist
- 1978 - Development of the neutron bomb is canceled by U.S. President Jimmy Carter