Scientists are bitterly divided over new evidence for an event which occurred back in Roman times, in 312 A.D. something happened which potentially may have changed the history of the world. While the Roman emperor Constantine prepared for a battle he saw a light in the sky which he interpreted as a sign from god, may believed it persuaded him and in turn the whole Roman Empire to convert to christianity.

But what was it exactly that Constantine saw in the sky that day? The trail of evidence starts with an intriguing discovery which has since lead to heated arguments between scientists, it seems the curtail event which turned the Roman Empire towards Christianity may now be linked to the catastrophic impact of a meteorite.