[MHDouglas]

Yes.. 2200 BC would be at the end of Sumer. Do you know of a cross reference in time?

[crystalk]

Somewhere after some 2300 bc, and before 2000, something catastrophic and seemingly nuclear/radioactive struck Sumer and ended it. The god Enki had warned some of them, and they were warned to flee northward from their ruined cities, taking no food or cooking pots with them for fear those had been touched by the ghost.

Very probably this event, to whatever extent natural or man-made, was the same event that devastated Biblical Sodom and Gomorrah and which seems to have virtually melted certain areas of the Sinai Peninsula of Egypt.

This may also have changed world climates and caused rainfall in Egypt to cease, made the Sahara a true desert, etc.

[sheik yerbouty]

I believe that Sumer was around 4000 B.C.

[Cvengr]

Great Pyramids built about 2550BC
Ur-Nanshe 1st King of Sumer about 2520BC
Great Flood about 2344BC
Akkadian Dynasty in Sumer about 2334-2154BC
Urnammu King of Sumer about 2112-2095BC
Abraham about 1991-1816BC
Moses about 1250BC
Trojan Wars about 1250BC