CHRISTMAS DATE

It was in the 4th century when The Catholic Church decided to celebrate Christmas on December 25th.
The idea behind it was a simple enough one in that they wanted to eclipse the festivities of a rival pagan religion that threatened Christianity's existence.
At that time of the year The Romans celebrated the birthday of their sun god, Mithras.
Church leaders decided that in order to compete with the pagan's they needed a festival of there own at the same time so they chose to celebrate the birth of Jesus Christ.
And it worked.