What was Constantine's vision he saw before he went into battle?

Answer 1

Constantine was not converted to Christianity. He was a Mithraist and his imperial cult was Sol Invictus - the Sun. The story of his conversion is a rework of his vision of Apollo. There is another story of a deathbed conversion, which is a later story not supported by contemporary evidence. He selected Christianity as an addition to his power, as he could control it through the bishops. Mithraism did not have such a structure so he chose Christianity as a secondary grip on power.

Answer 2

Even before the Battle of the Milvian Bridge, an acolyte reported that Constantine had seen a vision of the god Apollo in the sky. However, most modern scholars believe that this story did not originate with Constantine. A later story was that he saw a cross in the sky, leading him to become a Christian.

Answer 3

He saw the white cross in the sky with the Greek words "En Toutoi Nika", which translates to In Hoc Singo Vinces in Latin then translates to "In this sign you will conquer"

Answer 4

The Battle of the Pons Milvius