section_path: History/Early Portuguese colonization
section_name: Early Portuguese colonization
paragraph_text: Early Portuguese colonization
  
  The Swahili built Mombasa into a major port city and established trade links with other nearby city-states, as well as commercial centres in Persia, Arabia, and even India. By the 15th century, Portuguese voyager Duarte Barbosa claimed that "Mombasa is a place of great traffic and has a good harbour in which there are always moored small craft of many kinds and also great ships, both of which are bound from Sofala and others which come from Cambay and Melinde and others which sail to the island of Zanzibar."
  
  In the 17th century, the Swahili coast was conquered and came under the direct rule of the Omani Arabs, who expanded the slave trade to meet the demands of plantations in Oman and Zanzibar. Initially, these traders came mainly from Oman, but later many came from Zanzibar (such as Tippu Tip). In addition, the Portuguese started buying slaves from the Omani and Zanzibari traders in response to the interruption of the transatlantic slave trade by British abolitionists.
  
  Throughout the centuries, the Kenyan coast has played host to many merchants and explorers. Among the cities that line the Kenyan coast is Malindi. It has remained an important Swahili settlement since the 14th century and once rivalled Mombasa for dominance in the African Great Lakes region. Malindi has traditionally been a friendly port city for foreign powers. In 1414, the Chinese trader and explorer Zheng He, representing the Ming Dynasty, visited the East African coast on one of his last ' treasure voyages '. Malindi authorities also welcomed the Portuguese explorer Vasco da Gama in 1498.