Which emperor was known as 'Restorer of the World' for reunifying the empire? (r. 270-275 AD)

The story behind the answer

Aurelian (r. 270–275 AD) is the “Restorer of the World” (Restitutor Orbis) because he reunited a fractured empire during the Crisis of the Third Century. He crushed two breakaway states: the Palmyrene Empire under Queen Zenobia in the East and the Gallic Empire in the West, restoring Roman control across its core territories. He also made hard strategic choices, like evacuating Dacia, to strengthen defensible borders.

Beyond reconquest, Aurelian stabilized Rome: he built the Aurelian Walls to secure the capital, reformed the debased coinage, and elevated the cult of Sol Invictus to unify loyalty. Memory tip: “Aurelian” sounds like “aureus” (gold)—think of him as restoring Rome’s “golden” unity and wrapping it with walls.