Which modern day Libyan city has its origins in the times of Ancient Greece that helped form the Pentapolis of Cyrenaica along with the cities of Ptolemais, Tauchira, Apollonia and Euesperides?
Cyrene, Libya Cyrene ( ; Ancient Greek: Κυρήνη, "Kyrēnē" ) was an ancient Greek and Roman city near present-day Shahhat, Libya. It was the oldest and most important of the five Greek cities in the region. It gave eastern Libya the classical name "Cyrenaica" that it has retained to modern times.
Astacus in Bithynia Astacus (Greek Ἀστακός Βιθυνίας ) is the name of an ancient city in Bithynia; it was also called Olbia . Stephanus of Byzantium records an aetiological myth that it was founded by Astacus, son of Poseidon and the nymph Olbia. The city was founded in the Second Greek colonisation by the Megarans together with the Athenians.