It was considered not only a sign of peace and rebirth in ancient Greece (a concept taken up in the Bible from the Book of Genesis) and of justice and wisdom among the Jews (see the construction of the temple of Jerusalem by Solomon in the First Book of Kings), but also a symbol of esteem and consideration, to be attributed to those who distinguished themselves for their deeds (Romulus and Remus, for example, "parents" of the future Rome, were born under an olive tree...).
The ideal climatic conditions for its growth are: limited annual rainfall, hot and dry summers, temperate winters. The olive tree grows and thrives even in arid and poor places for soil, rich in skeleton, permeable and well ventilated. Light and wind are also essential for its development.