<Li> 1511--Duarte Fernandes is the first European to visit the Kingdom of Siam (Thailand), sent by Afonso de Albuquerque after the conquest of Malaca . </Li> <Li> 1512--António de Abreu discovered Timor island and reached Banda Islands, Ambon Island and Seram . Francisco Serrão reached the Moluccas . </Li> <Li> 1512--Pedro Mascarenhas discovered the island of Diego Garcia, he also encountered the Mauritius, although he may not have been the first to do so; expeditions by Diogo Dias and Afonso de Albuquerque in 1507 may have encountered the islands . In 1528 Diogo Rodrigues named the islands of Réunion, Mauritius, and Rodrigues the Mascarene Islands, after Mascarenhas . </Li> <Li> 1512--João de Lisboa and Estevão Frois reached the La Plata estuary or even perhaps the Gulf of San Matias in 42 ° S in modern Argentina between 1511 and 1514 (1512) according to the manuscript Newen Zeytung auss Pressilandt in the Fugger archives of the time . Christopher de Haro, the financier of the expedition, bears witness to the trip to La Plata (Rio da Prata) and the news of the "White King" to the interior and west, the Inca emperor--and the axe of silver obtained from the natives and offered to the king Manuel I . </Li>

Which explorer helped make portugal a world power