Founded in the third millennium B.C. Tyre originally consisted of a mainland settlement and a modest island city that lay a short distance off shore. But it was not until the first millennium B.C. that the city experienced its golden age. Phoenician expansion began about 815 B.C. when traders from Tyre founded Carthage in North Africa. Eventually its colonies spread around the Mediterranean and Atlantic, bringing to the city a flourishing maritime trade. But prosperity and power make their own enemies. Early in the sixth century B.C. Nebuchadnezzar, King of Babylon, laid siege to the walled city for thirteen years. Tyre held out, but it was probable that at this time the residents of the mainland city abandoned it for the safety of the island.
In 332 B.C. Alexander the Great set out to conquer this strategic coastal base in the war between the Greeks and the Persians. Unable to storm the city, he blockaded Tyre for several months. Again Tyre held on. But the conqueror used the debris of the abandoned mainland city to build a causeway and once within reach of the city walls, Alexander used his siege engines to batter and finally breach the fortifications. It is said that Alexander was so enraged at the Tyre’s defense and the loss of his men that he destroyed half the city. The town's 30,000 residents were massacred or sold into slavery. Tyre and the whole of ancient Syria fell under Roman rule in 64 B.C.. The Romans built great important monuments in the city, including an aqueduct, a triumphal arch and the largest hippodrome in antiquity.
Taken by the Islamic armies in 634, the city offered no resistance and continued to prosper under its new rulers, exporting sugar as well as objects made of pearl and glass. With the decline of the Abbasid caliphate, Tyre acquired some independence under the dynasty of Banu 'Aqil, vassals of the Egyptian Fatimides. Thanks to Tyre's strong fortifications it was able to resist to onslaught of the Crusaders until 1124. After about 180 years of Crusader rule, the Mamlukes retook the city in 1291, then it passed on to the Ottomans at the start of the 16th century. With the end of the World War I Tyre was integrated into the new nation of Lebanon.