197 Roman Emperor
Septimius Severus defeated usurper Clodius Albinus in the Battle of Lugdunum,
the bloodiest battle between Roman armies.
356 The Christian Roman emperor
Constantius II issued a decree closing all pagan temples.
607 Boniface III was
1408 The revolt of Henry Percy, Earl of Northumberland, against
King Henry IV, ended with his defeat and death at Bramham Moor.
Copernicus, the father of modern astronomy, was born.