Judaism is the oldest surviving monotheistic region. It started off when Abraham, considered to be the first Jew, made a consent to god in the second millennium B.C.E. Judaism was founded on the Eastern Mediterranean. Both Christianity and Islam originated off of Judaism.
The Jewish believe in one god and his prophets. Moses was the prophet in which God gave the laws to. Those laws are in the Torah, the holy book of Judaism. The Jewish people worship at a Synagogue. The most famous Jewish holiday is Hanukkah.
Christianity began as a offshoot of Judaism, except that the Christian people believe that Jesus is the Messiah. It originated in Roman Palestine.
The religion of Christianity believes in the New Testament, as well as parts of the old testament. They worship in churches every Saturday, in which the priest presents the service. Some holidays that Christians celebrate are Christmas, the birth of Jesus, and Easter, the resurrection of Jesus Christ..