Thomas Midgeley Jr. discovered that adding tetraethyl lead to gasoline reduced knocking in automobile engines.
6th September 1522: Victoria becomes the first ship to circumnavigate the world
6th September 2018
Thomas Midgeley Jr. discovered that adding tetraethyl lead to gasoline reduced knocking in automobile engines.
On the 13th October AD 54, the Roman Emperor Claudius died, supposedly after being poisoned.