Olive Oil

Homer called olive oil "liquid gold".
It has been a symbol; used in religious rituals; medicines; as fuel for oil lamps; soap making and skin applications, and last but not least as food.
It's beneficial contributions to civilization and the culinary arts is undeniable.

Olive oil is a fat obtained from the olive (the fruit of Olea europaea; family Oleaceae), a traditional tree crop of the Mediterranean Basin.
The oil is produced by pressing whole olives.
It is commonly used in cooking, cosmetics, pharmaceuticals, and soaps and as a fuel for traditional oil lamps. Olive oil is used throughout the world and is especially associated with Mediterranean countries.