Thomas Midgeley Jr. discovered that adding tetraethyl lead to gasoline reduced knocking in automobile engines.
21st June 1919: The German High Seas naval fleet is scuttled at Scapa Flow
21st June 2019
Thomas Midgeley Jr. discovered that adding tetraethyl lead to gasoline reduced knocking in automobile engines.
Ancient sources state that the Emperor Claudius as poisoned, although who administered the poison – and on whose orders – continues to be fiercely debated by scholars.
On the 13th October AD 54, the Roman Emperor Claudius died, supposedly after being poisoned.
28th June 2015
11th November 2022
11th November 2022
1st September 2018