Though the Jewish calendar dates back more than 5000 years in the past, most scholars date the beginning of the religion of the Israelite to their forefather in faith, Abraham, whose lifetime is dated to around 2000-1800 B.C.E. Most estimates I have seen suggest that there are about 13-14 million Jews in the world. The vast majority of these Jews live in either the United States and Israel, both with 5-6 million Jews. There are about 1.5 million Jews in Europe, 400,000 in Latin America and 350,000 in Canada. In Africa, there are less than 100,000 Jews, about 90% of whom live in the country of South Africa. There are about 100,000 Jews in Australia and New Zealand combined. There are about 50,000 Jews in Asia not including Isreal.
Map of Christianity
The reasons that Christianity moved from Southwest Asia is because of the disciples. Their mission was to spread the word of God. Their journey lead them to North America. When they began spread the word. They enriched us in their culture. That is why the religion of Christianity is so popular now.