The wild olive tree originated in Eastern Mediterranean areas which is known now as Greater Syria (Syria, Lebanon & Palastine).
Then plantations expanded to Southern European costs on the Mediterranean and North Africa coasts.
Olive oil history archaeological evidence shows that olives were turned into olive oil by 6000 BC and 4500 BC at a now-submerged prehistoric settlement south of Haifa. Until 1500 BC, eastern coastal areas of the Mediterranean were most heavily cultivated.
Olive oil is regarded as a healthful dietary oil because of its high content of monounsaturated fat (mainly Oleic acid) and polyphenols.