Roman period
In 164 BC, Rhodes came under Roman control. It was able to keep its beauty and develop into a leading center of learning for arts and science. The Romans took from the Rhodians their maritime law and applied it to their shipping. Many traces of the Roman period still exist throughout the city and give an insight into the level of civilization at the time. According to Acts 21:1, the Apostle Paul stopped at Rhodes near the end of his third missionary journey.
Byzantine period
In medieval times, Rhodes was an important Byzantine trading post, as also a crossroads for ships sailing between Constantinople and Alexandria. In the early years of the divided Roman Empire, the Isaurians, a mountain tribe from Cilicia, invaded the island and burned the city. In the 7th century AD it was captured by the Arabs. The latter were the ones who removed the scattered pieces of the Colossus from the port and moved them to Syria where they destroyed them to make coins. After the fall of the Byzantine Empire to the Fourth Crusade in 1204, the native noble Leo Gabalas took control of the island, but after his death and succession by his brother John, the island was briefly occupied by the Genoese before being returned to the Emperor of Nicaea, though ushering in a new, but short-lived, Byzantine period.
Street of the Knights at golden hour
Knights' period
The Knights Hospitallers captured and established their headquarters on Rhodes when they left Cyprus after the persecution of the Knights Templar in 1307. Pope Clement V confirmed the Hospitallers possession of the Island in 1309. The Knights remained on the Island for the next two centuries.
In 1444, the Mamluk fleet of Egypt laid a siege to Rhodes, but the Knights aided by the Burgundian naval commander Geoffroy de Thoisy beat off the Muslim attack.
After the Fall of Constantinople in 1453 the Ottoman Empire began a rapid expansion and in 1480 Sultan Mehmet launched an invasion of Rhodes commanded by Mesic Pasha. The defenders repelled Turkish attacks from both landward and seaward sides and the invaders left the Island in defeat. The defeat halted a concurrent invasion of the Italian peninsula by Ottoman forces and prevented possible Muslim incursion and control of Western Europe.
After the Ottoman defeat in 1480 the Knights Grand Master, Pierre d'Aubusson, oversaw the strengthening of the cities over the next few decades. By the time of his death in 1521 Rhodes possessed the strongest fortifications of any Christian Bastion in the World. The Knights continued naval attacks launched from Rhodes on Muslim merchants until 1522 when the newly enthroned Sultan Suleiman the Magnificent led a second Siege of Rhodes in 1522.
The vastly outnumbered Knights made a spirited defense of the city and inflicted heavy casualties upon the Ottoman besiegers. In December 1522 the Knights and Suleiman came to terms and the Knights were allowed to leave the city with all the wealth they could carry, in return there would be no retribution upon the inhabitants of the city and they would be allowed to continue to freely practice Christianity. On January 1, 1523 the Knights departed from the island, leaving it to Ottoman control.