Muhammadans, so long as they were loyal, openly declared himself a Musalman and tried every means to bring his subjects over to the same faith. An Arab missionary took advantage of the occurrence of a terrible earthquake in the following year, to prophecy the destruction of Bolaäng-Mongondou, unless the people speedily became converted to Islam. Many in their terror hastened to follow this advice, and the Raja and his nobles lent their support to the missionaries and Arab merchants, whose methods of dealing with the dilatory were not always of the gentlest. Nearly half the population, however, still remains heathen, but the progress of Islam among them, though slow, is continuous and sure. [1299] The neighbouring island of Sambawa likewise probably received its knowledge of this faith from Celebes, through the preaching of missionaries from Macassar between 1540 and 1550. All the more civilised inhabitants are true believers and are said to be stricter in the performance of their religious duties than any of the neighbouring Muhammadan peoples. This is largely due to a revivalist movement set on foot by a certain Ḥājī ʻAli after the disastrous eruption of Mount Tambora in 1815, the fearful suffering that ensued thereon being made use of to stir up the people to a more strict observance of the precepts of their religion and the leading of a more devout life. [1300] At the present time Islam still continues to win over fresh converts in this island. [1301] The Sasaks of the neighbouring island of Lombok also owed their conversion to the preaching of the Bugis, who form a large colony here, having either crossed over the strait from Sambawa or come directly from Celebes: at any rate the conversion appears to have taken place in a peaceable manner. [1302] The population of Lombok falls into two distinct divisions, the Sasaks and the Balinese; the first of these, consisting of the Muhammadan Sasaks, the original inhabitants of the island, far outnumbers the second, but about the middle of the eighteenth century they came under the rule of the Balinese and soon found their island overrun by swarms of the Hindu neighbours. [1303] The rule of the Balinese was very oppressive, and they made efforts—though with little success—to bring their Muslim subjects over to Hinduism; the Sasaks tried in vain to shake off the yoke of their oppressors, and more than once appealed to the Dutch Government, before the expedition of 1894 brought peace to the island and established an orderly administration under Dutch rule. The new government brought with it a large number of native Muhammadan officials, who throw in their influence on the side of their own faith, and it is thus expected that one of the results of the Dutch conquest of Lombok will be to give a great impetus to Islam in this island. [1304]