Olive leaves

Pliny the Elder told of a sacred Greek olive tree that was 1600 years old. Several trees in the Garden of Gethsemane (from the Hebrew words "gat shemanim" or olive press) in Jerusalem are claimed to date back to the time of Jesrus. Some Italian olive trees are believed to date back to Roman times, although identifying progenitor trees in ancient sources is difficult.
The age of an olive tree in Crete, claimed to be over 2,000 years old, has been determined on the basis of tree ring analysis. Another well-known olive tree on the island of Brijuni (Brioni), Istria in Croatia, has been calculated to be about 1,600 years old. It still gives fruit (about 30 kg per year), which is made into top quality olive oil.
According to a recent scientific survey there are tens of ancient olive trees throughout Palestine, 1600-2000 years old. Specifically, two giant olive trees in the Arab town of Arraba and five trees in Deir Hanna, both in Galilee region, have been determined to be over 3000 years old. All seven trees continue to produce olives.
A tree located in Santu Baltolu di Carana in Sardinia, Italy, named with respect as the Ozzastru by the inhabitants of the region, is claimed to be 3000 to 4000 years old according to different studies. In the same natural garden, a few other millenary trees can be admired.
The olive tree is frequently mentioned in religious texts such as the Bible, the Qur'an and the Book of Mormon, and is one of the symbols of the Greek goddess Athena.
As far back as 3000 BC olives were grown commercially in Crete; they may have been the source of the wealth of the Minoan Civilization.