There is no historical evidence for the existence of a man called Moses except in the texts produced by the Levites and other writings and opinions stimulated by those texts. The official background to Moses and his name have no historical basis. Nothing was known about the "Moses" story, or the "plagues" inflicted upon the Egyptians, until the Levites of Babylon wrote Exodus centuries after it was supposed to have happened. All the animals of Egypt were killed three times according to the story! What did they do, die and immediately re-manifest?
There was no murder of the first born of Egypt and so the Feast of the Passover has no historical basis, it was created as a result of a story invented by the Levites. Their references to the lamb's blood on the doors is code for the ancient symbolism of the lamb. There is no official book in Hebrew which makes any mention of the Pentateuch (the laws of Moses) before the Levites went to Babylon. As for the Israelites being captive in Egypt, even Deuteronomy describes them as strangers, not slaves, in this period. So where did the name Moses come from?
Every initiated person who attained the highest rank in the Egyptian mystery schools was called a Muse, Mose or... Moses. Manetho, the Egyptian historian of the third century BC, quoted by the Jewish historian, Josephus, says that he was a priest at Heliopolis or ON (Place of the Sun), and that afterwards he took the name of Mosheh or Moses. The word Moses means: he who has been taken away, he who has been put out from the waters, who has been made a missionary, an ambassador, an apostle. The Chief Priest in the Egyptian temples was called EOVE or EOVA, hence the emergence of the name Jehovah, and the Hebrew language is really the sacred language of the Egyptian mystery schools.