The Portuguese first reached the west coast of India when Vasco da Gama landed at Calicut in 1498. They finally established themselves at Goa in 1510. In 1526 they established a factory in Bassein. In 1534, the islands of Bassein, Salsette, Bombay and Karanja were ceded to the Portuguese by Bahadur Shah of Gujarat. In this very year, the Archdiocese of Goa was created and the whole of the western coast around Bombay formed part of that archdiocese. Missionary activities in Bassein (Burma), Salsette and Bombay commenced from 1534 onwards, thus laying the foundation for the future Archdiocese of Bombay. The Portuguese missionaries who accompanied the conquerors were the Franciscans, Jesuits, Dominicans and Augustinians.