أزمة القرن الثالث
Aurelian (; 9 September 214) was Roman emperor from 270 to 275. As emperor, he won an unprecedented series of military victories which reunited the Roman Empire after it had practically disintegrated under the pressure of barbarian invasions and internal revolts. His successes were instrumental in ending the Crisis of the Third Century, earning him the title – "Restorer of the World".