Posted by Events
1801 – Dwarf planet Ceres is discovered by Giuseppe Piazzi.
1925 – Edwin Hubble announces the discovery of galaxies outside the Milky Way.
1983 – The ARPANET officially changes to using the Internet Protocol, creating the Internet.
1985 – The Internet’s Domain Name System is created.
1989 – The Montreal Protocol on Substances That Deplete the Ozone Layer comes into force.
Births
1774 – André Marie Constant Duméril, French zoologist
1854 – Sir James George Frazer, Scottish anthropologist
1876 – Harriet Brooks, Canadian physicist
1878 – Agner Krarup Erlang, Danish scientist and engineer
1917 – Jule Gregory Charney, American meteorologist
Deaths
1800 – Louis-Jean-Marie Daubenton, French naturalist
1817 – Martin Heinrich Klaproth, German chemist
1862 – Mikhail Vasilievich Ostrogradsky, Russian physicist
1894 – Heinrich Rudolf Hertz, German physicist
1931 – Martinus Beijerinck, Dutch microbiologist and botanist
1995 – Eugene Wigner, Hungarian physicist and Nobel Prize laureate