 The city was established around 1,800 BC at the latest.Its natural harbour has been used since the Bronze Age.By the time Tel Aviv was founded as a separate city during Ottoman rule of the region, Jaffa had been ruled by the Canaanites, Egyptians, Philistines, Israelites, Assyrians, Babylonians, Persians, Phoenicians, Ptolemies, Seleucids, Hasmoneans, Romans, Byzantines, the early Islamic caliphates, Crusaders, Ayyubids, and Mamluks before coming under Ottoman rule in 1515.