We just learned about the Edict of Milan written in 313 AD by the emperor Constantine that it legal to be a Christian.
In the year 312 AD there was a big battle called the Battle of the Milvan Bridge in Ponte Milvio, Rome.
At that time Constantine was in a war with another emperor Maxentius.
Some time before the battle Constantine had a vision telling him to use the Chi-Ro symbol for his army, and he would win the battle with that as his sign.
We learned before that the chi-rho is the greek letters that look like X and P, and were for the Greek word for Christ, that started with those two letters.
Constantine put that symbol on the shields of his army, and beat Maxentius.
It was after he won that battle that he went back and wrote the Edict of Milan to make Christians free.
(from: wikipedia - battle of the milvan bridge)
Kid Facts - Blast from the past: Parmenas
