The name is derived from the word "ugly" refering to the it's unpleasant appearance, with rough, wrinkled, greenish-yellow rind, wrapped loosely around the orange pulpy citrus inside.
In ancient Greece, 1st eye shadow was made by adding olive oil in ground charcoal.
The most expensive form of olive oil is Extra Virgin.
Largest type of olive tree is known as donkey tree & smallest one is called bullet.