Adamites controlled floods in Mesopotamia for thousands of years. It was during the floodtimes that Susa so greatly prospered. Unprecedented floods on the Euphrates around 5,000 B.C. caused dozens of cities to be abandoned.  Floods destroyed Mediterranean civilization ca. 15,000 B.C. 
As the Hebrew priests in Babylonian captivity sought to trace the Jewish people back to Adam, they found great difficulty in piecing the story together; and they let the whole world drown in its wickedness at the time of Noah’s flood, and thus to be in a better position to trace Abraham right back to one of the three surviving sons of Noah.  Floods made lowland Chinese cities untenable.  Mithraic legend included the story of a man escaped from a flood in a specillay built boat.  Notable floods:
Noah really lived; he was a wine maker of Aram, a river settlement near Erech. He kept a written record of the days of the river’s rise from year to year. He brought much ridicule upon himself by going up and down the river valley advocating that all houses be built of wood, boat fashion, and that the family animals be put on board each night as the flood season approached. He would go to the neighbouring river settlements every year and warn them that in so many days the floods would come. Finally a year came in which the annual floods were greatly augmented by unusually heavy rainfall so that the sudden rise of the waters wiped out the entire village; only Noah and his immediate family were saved in their houseboat.