The olive tree is one of the oldest trees humans ever knew. It is a blessed tree as Allah says in the Glorious Quran. It can live for hundreds of years and can grow up to 5-12 meters long. It is a generous tree; olives become immediately edible when they ripen. From olives we extract oil, and wood of the olive tree is good for making brushes and sticks. Olive trees have a dense shade, and they symbolize peace universally.