What evidence is there of Civilisation before the Flood?

The answer to this greatly depends on what year you attribute the occurrence of the Flood of Noah (if it even is a historical event). The oldest common estimates place the events of the Flood at around 4000 B.C.E. The evidence of Civilization (as was later defined) is non-existent, but there were numerous small cities throughout the Middle East. During the 5th millennium B.C.E., Anatolians invented the wheel.