Christians claim that they support their religion because it is the one true religion. Well, it is the dominant religion of western countries. And that probably has more to do with the fact the emperor Constantine embraced Christianity. In 313 CE he instituted offical state tolerance of it with the Edict of Milan. He reportedly converted himself to Christianity in 337 CE with his baptism on his deathbed. (Then in 380 the Emperor Theodosius I made Christianity the official state religion of the Roman Empire, leading to thousands of years of corrupt popes and greedy bishops. Until the protestant reformation of the 16th century.) Everyone knows Constantine embraced it at least partly for political motives. (And plus you know, he embraced Nicene Christianity with its doctrines of the trinity and worshipping religious icons.) But you know on a message board I was on a while back someone brought up a good point. What the emperor Constantine really should have done was embrace the religion of Sol Invictus. It was already the official state religion at the time, and it was much more scientific. It was ecletic in its views, melding together the worship of several eastern and Greco-Roman solar deities. And unlike Christianity with its worship of invisible people and invisible forces, it was based on what could easily be observed and studied. The Sun. The cult of Sol Invictus also had a connection to nature and astromony with its chief festival Dies Natalis Solis Invicti, or the winter solstice as we call it today.