Aurelian (Latin: Lucius Domitius Aurelianus Augustus; 9 September 214 or 215 – September or October 275), is Roman Emperor from 270 to 275.

During his reign, he defeats the Alamanni after a devastating war.

He also defeats the Goths, Vandals, Juthungi, Sarmatians, and Carpi.

Aurelian restores the Empire's eastern provinces after his conquest of the Palmyrene Empire in 273.

The following year he conquers the Gallic Empire in the west, reuniting the Empire in its entirety.

He is also responsible for the construction of the Aurelian Walls in Rome, and the abandonment of the province of Dacia.

His successes effectively end the Roman Empire's Crisis of the Third Century, earning him the title Restorer of the World.

Although Domitian was the first Emperor who had demanded to be officially hailed as dominus et deus (master and god), these titles never occurred in written form on official documents until the reign of Aurelian