Past sea level has varied by somewhat more than a hundred metres. This is primarily due to the growth and decay of ice sheets (mostly in the northern hemisphere) with water evaporated from the sea. The Mediterranean Basin's gradual growth as the Neotethys basin, begun in the Jurassic, did not suddenly affect ocean levels. While the Mediterranean was forming during the past 100 million years, the average ocean level was generally 200 metres above current levels. However, the largest known example of marine flooding was when the Atlantic breached the Strait of Gibraltar at the end of the Messinian Salinity Crisis about 5.2
Red Sea–Dead Sea Water Conveyance and waiting for the final feasibility study, for which international funding would follow. The connection of the seas by canal was first suggested in the mid 19th century by British officers who were looking for ways to circumvent the French-built Suez Canal and had not realized that the level of the Dead Sea is much lower. Later on, at the end of the 19th century, planners thought how to use the Jordan River water for irrigation and to bring sea water to the Dead Sea to create energy from its position of -390 m below sea level. One of those