One of the most prevalent religions in the world is Christianity. Christianity's based with two main parts of the Bible- Old Testament and New Testament. The New Testament consits on Jesus's teachings and preachings. The Old Testament is as honored by christian , as by jews , which doesn't believe in Christ , as in Messiah. Christianity was shared on three groups- catholic, orthodoxy and protestant. Each of this three types has it's own interpretation of Testaments' rules and moral .These religions have different explanations how people should live, love , behave themselves and all the important human's problems. Also all the kinds of Christianity have really rich culture, because these kinds are owned by different nations. That's got a really big role in peoples' philosophy, bevavior, traditions, literature, art and celebrations. Religions have a really big impact on society.