What a limited view. Consider Tyre, very close to Beirut. Before Muslim it was Phoenician, Hittite, Egyptian, Babylonian, Assyrian, Canaanite, Persian, Macedonian, Israeli, English, Ottoman, Roman, and now Lebanon. Its had both Eastern and Western Influence (since Alexander). Remember Alexander predates the existence of Islam and Christianity - certainly colonialism. At the time of Beirut's founding its religion was following a god named Baal and Astarte.