For those of you that don't research this stuff I will give a little back story. We all know about the Moses Exodus, but history and archeology didn't seem to confirm this event. The only exodus out of Egypt ever recorded was that of a group of Asiatic tribes that had taken over Egypt for a bit over 100 years called the Hyksos and the followers of the Pharaoh Akhenaten who perpetuated a monotheistic idea of worshiping only one deity the Aten.
Back to the Hyksos, these were pushed out of Egypt by a king named Ahmose but this was never taken to seriously as the Moses Exodus because it happen several hundred years before the Moses exodus was thought to have taken place and the bible mentions a city the Israelites were supposed to have built under forced labor called Pi-Ramesses after the great Pharaoh Ramesses II.
But this is where things become interesting, if on looks at the older bible translation called the Septuagint, in this bible the Patriarchs are listed as being older then the more popular bible translation used today the Masoretic. When one lines up the dates using this Septuagint bible it lines up the Exodus very closely to that of the Hyksos. What's also interesting is the original name for the city the Israelites supposedly built was not Pi-Ramesses but Avaris, which was the capital city of the Hyksos. Its also worth noting that several ancient historians state that these Hyksos were in fact the ones the Exodus story in the bible were taking about. Most of these historians stated they were driven out and that a plague had something to do with it. Also this was happening around the same time as a major volcano was erupting in the Mediterranean sea called Mt. Santorini. Maybe some of the ten plagues had something to do with this eruption? Under Avaris they found the remains of dead bodies mostly children under the age of two. Was this do to a plague or the city being under siege by Ahmose and his Egyptian army is unclear. In the end these people were allowed to leave and move east to resettle, Monetho stated that they settled in a city called Jerusalem. These dates also line up with the destruction of the city of Jericho, which may have been attacked and burned by theses Hyksos as they made their way east. Its also worth noting that in the Septuagint translation it the Reed Sea not the Red Sea
So it looks as though the bible story of an exodus did actually take place, but the retelling of the story by the losers turned in to a legend where they did not loose after all but were the victors, slaves not oppressors.
A very good article is written here, http://ancientneareast.org//?s=exodus%3A+fact+or+fiction&search=Go