Portal:History of science/Selected anniversaries/April 7

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)


 * 1795 - France adopts the metre as the basic measure of length


 * 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