Strabo states that in 166 BC the Romans converted Delos into a free port, which was partially motivated by seeking to damage the trade of Rhodes, at the time the target of Roman hostility. In 167 or 166 BC, after the Roman victory in the Third Macedonian War, the Roman Republic ceded the island of Delos to the Athenians, who expelled most of the original inhabitants. Roman traders came to purchase tens of thousands of slaves captured by the Cilician pirates or captured in the wars following the disintegration of the Seleucid Empire. It became the center of the slave trade, with the largest slave market in the larger region being maintained here.