There is no extra-biblical evidence that Moses existed as a historical person. See the article on The Bible and history.
On the other hand, historical records are so fragmentory that extrabiblical records of Moses may have been long lost. For example, if the Exodus occurred during the end of the Hyksos era in Egypt, as some scholars believe, then those Hyksos records of Moses would have been deliberately destroyed by victorious Egyptians as they drove the Hyksos out of Egypt. The only known historical record that survives mentioning Moses is the Bible.
If Moses is accepted as a historical figure, various aspects of the Biblical tale can be re-interpreted. It is quite likely, for example, that Moses was an Egyptian nobleman or prince influenced by the religion of Aten (see below), since Moses is an Egyptian name meaning "son" and was often used in pharaohs' names. The Hebrews might have fabricated the "bulrushes" story along the lines of the tales of Sargon of Agade (Mesopotamian) or Oedipus (Greek) to legitimize his position. On the other hand, infants were often abandoned by the lower classes in ancient times, and "Moshe" is a Hebrew word.
Dating the Exodus has also proved challenging. Three views include:
it occurred around the end of the Hyksos era, as expressed above;
it occurred about 1420 BCE, since records exist of "Habiru" invasions of Canaan forty years later;
or it occurred during the 13th century BCE, as the pharoah during most of that time, Ramses, is commonly considered the pharoah Moses squabbled with.
Finally, there is the challenge of interpreting the many miracles in the Moses story. Most of them are simply dismissed by scholars as legends, but some can be explained. For example, some of the plagues strongly resemble exaggerated versions of actual pestilences common in the ancient world (see The Ten Plagues), the famous Red Sea crossing may have been a marsh (the "Reed Sea") through which the Egyptian chariots could not penetrate, the manna which God bestowed on the hungry Israelites may have been the secretion of the hammada shrub, and the swallowing of Korah (Numbers 16) could have been an earthquake.
There is also a psychoanalytical interpretation of Moses' life, put forward by Sigmund Freud in his last book, "Moses and Monotheism," in 1937. Freud postulated that Moses was an Egyptian nobleman who adhered to the monotheism of Akhenaton. Freud also believed that Moses was murdered in the wilderness, producing a collective sense of patricidal guilt which has been at the heart of Judaism ever since. "Judaism had been a religion of the father, Christianity became a religion of the son," he wrote.
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the bible is a nice read, but it's just that a read, like any book of fables. if you believe it, you must believe all the content there in, which then makes the lead character evil, and the second lead also.