In 1521, the ruler of Maynila known as Rajah Matanda, was a grandson of Sultan Bolkiah of Brunei, and "Borneans" were described as introducing Islam to the natives of Balayan, Manila, Mindoro and Bonbon. A further account declared that the "Borneans" and the people of Luzon had become 'almost one people', and their clothing styles and ceremonies and customs were certainly similar. When Magellan expedition visited the Philippines Islands, the Malay language was used for communication, and linguistic research has revealed the extent to which Malay had become a 'prestige language'. This is partly evidenced by the fact that key terms from the Malay kingship system entered local languages. These include titles such as datu dan laksamana, and the words for 'rank' (pangkat), 'sitting legs crossed' (bersila), 'treason' (derhaka), 'magical chanting' (mantera) and 'story' (hikayat). Malayisation also occurred in the form of acculturation, in addition to complete assimilation into Malay identity. In this way, it shaped the ethnocultural development of creole ethnic group such as Betawi, Banjar, Peranakan, Jawi Peranakan, Kristang, Chitty and so forth. Such acculturation process was also reflected by assimilation of immigrants from other part of Maritime Southeast Asia, commonly known as anak dagang ('traders'), into the established Malay communities, aided by similarity in lifestyle and common religion (Islam). Among these immigrant communities, some cultural elements of Malay origin were later combined in various forms and degrees with their own elements, which partly retained. Notable groups including the Javanese, Minangkabau and Bugis Malays. Contemporary events Malaysia The Malay peninsula, now an important part of Malaysia, has been the stronghold of Malay sultanates for centuries. As the entire peninsular was consolidated under Melaka's rule in the 15th century, it became the core of the Malay world since then, thus earning its name Tanah Melayu ("Malay land") in Malay language. The traditional institutions of sultanates in the peninsula survived the colonisation, and were incorporated into the blueprints of the modern state in 1948. Ultimately, Malay rulers remained at the highest hierarchical order of the society. Malayness has been conceived as fundamental basis for state's ideology and it became the main driving force for Malay nationalism in a struggle against British colonisation. The state itself is largely organised around the idea of maintaining the special status of Malays as the first among equals of the Bumiputra communities. The historical identification of the Malays with Islam was entrenched in the Article