Pentateuch means the first five books of the Bible. These books are Genesis, Exodus, Leviticus, Numbers, and Deuteronomy. The word Pentateuch comes from two Greek words that mean 'five books' or 'five scrolls'. According to tradition, the books were written by the Israelite leader, Moses. The Pentateuch is often called the Five Books of Moses or the Torah and tells the story from the Creation of the world to the death of Moses and the preparation of the Israelites to enter the land of Canaan.
Until the last three hundred years, both Jews and Christians were almost unanimous in their belief that Moses was the author (or at least the compiler) of Genesis as well as the author of Exodus through Deuteronomy. Reasons for the rejection of Moses' authorship were not based upon any objective evidence but stemmed from an anti-supernatural bias on behalf of the critics.