Libya Greek cities were established in the area that became known as Cyrenaica. In 525 BC the Persian army of Cambyses II overran Cyrenaica, which for the next two centuries remained under Persian or Egyptian rule. Alexander the Great was greeted by the Greeks when he entered Cyrenaica in 331 BC, and Eastern Libya again fell under the control of the Greeks, this time as part of the Ptolemaic Kingdom. After the fall of Carthage the Romans did not immediately occupy Tripolitania (the region around Tripoli), but left it instead under control of the kings of Numidia, until the coastal cities
Cyrenaica salt-collecting and sponge fishing were more important than agriculture. Bomba and Tobruk have good harbors. South of the coastal highlands of Cyrenaica is a large east-west running depression, extending eastward from the Gulf of Sidra into Egypt. This region of the Sahara is known as the Libyan Desert, and includes the Great Sand Sea and the Calanshio Sand Sea. The Libyan Desert is home to a few oases, including Awjila (ancient Augila) and Jaghbub. The Berbers were the earliest recorded inhabitants of Cyrenaica, and most modern Cyrenaicans are considered to be Berber in origin. Remnants of the Berber languages spoken