: Following his father’s death in 306 AD, his soldiers declared him emperor in Eboracum (modern York).
: Before the Battle of Milvian Bridge (312 AD), Constantine reportedly saw a cross in the sky with the words "In this sign, conquer" ( National Geographic ). Religious Revolution Constantine - The Sa...
Constantine the Great (c. 272–337 AD) was the first Roman emperor to convert to Christianity, a move that fundamentally shifted the course of Western history. 🏛️ Rise to Power : Following his father’s death in 306 AD,