On the 6th March 1869, Russian chemist Dmitri Mendeleev presented his periodic table to the Russian Chemical Society.
21st July 1925: ‘Monkey Trial’ finds John T. Scopes guilty of teaching evolution
21st July 2018
Thomas Midgeley Jr. discovered that adding tetraethyl lead to gasoline reduced knocking in automobile engines.
Marie and Pierre Curie proved the existence of the new element radium when they chemically isolated one-tenth of a gram of pure radium chloride.
The DuPont company’s organic chemist Wallace Carothers received a patent for linear condensation polymers, the basis of the material better known as nylon.
18th January 1871: Wilhelm I declared German Emperor
18th January 2020
16th January 27 BCE: Octavian becomes Augustus, Roman Emperor
16th January 2020
15th January 1919: Great Molasses Flood kills 21 people in Boston
15th January 2020
11th November 1918: WW1 Armistice of Compiègne is signed
11th November 2018
1st September 1939: Nazi Germany invades Poland
1st September 2018