The story of Abraham and Moses are found in more than just Christian writings. Of course, if you wanted to discount historical writings, then half of history goes down the tubes. I found this on the BBC web site:
The tale of the basket
The story of the infant Moses being set adrift in a basket bears remarkable similarities to an old Babylonian myth about a great King called Sargon who was discovered as a baby in a basket in a river.
Between 600 and 300 BCE, Jewish scribes in Jerusalem set out to record all the old tales of their people, handed down from generation to generation. What if the scribes had wanted to add a bit of spice to their tales to make them more interesting? Could they have used the myth of Sargon and made up the tale of Moses? It's certainly possible as we know the Jews were captured by the Babylonians in 587 BCE and held in exile in Babylon (modern Iraq) for some time. They could have picked up the Sargon legend there.
Egyptologist Jim Hoffmeier studied the original Hebrew text. He found that key words in the story - bulrushes, papyrus, Nile, riverbank - were all ancient Egyptian words, and not Babylonian.
But what about the name 'Moses'? It is an Egyptian name meaning 'One who is born'. It uses the same root as 'Ramses'. It's hard to believe that a Hebrew scribe, one thousand years later, could have come up with a story using authentic Egyptian words.
Well actually there are many stories of babies being put in baskets and exposed or put in water. This was an ancient way of putting a child out to the fate of the gods. Today people put babies in baskets and put them on church doorsteps.Jim Hoffmeier, Egyptologist
Sorry about the various fonts, but my computer does not want me to type in normal font........ arg!
Anyway, there's more, here's a link: http://www.bbc.co.uk/religion/religions/judaism/history/moses_3.shtml
There are arguments over whether or not any of the historical references in the Bible, Koran and Tora are correct, but with my puter being so cooperative :glare: this is the best I can get to refute that.