In Sumatra there occur some remains of Hindu temples[526], as well as other mysterious monuments in the Passumah lands inland from Benkulen, relics of a former culture, which goes back to prehistoric times. They take the form of huge monoliths, which are roughly shaped to the likeness of human figures, with strange features very different from the Malay or Hindu types. The present Sarawi natives of the district, who would be quite incapable of executing such works, know nothing of their origin, and attribute them to certain legendary beings who formerly wandered over the land, turning all their enemies into stone. Further research may possibly discover some connection between these relics of a forgotten past and the numerous prehistoric monuments of Easter Island and other places in the Pacific Ocean. Of all the Indonesian peoples still surviving in Malaysia, none present so many points of contact with the Eastern Polynesians, as do the natives of the Mentawi Islands which skirt the south-west coast of Sumatra. "On a closer inspection of the inhabitants the attentive observer at once perceives that the Mentawi natives have but little in common with the peoples and tribes of the neighbouring islands, and that as regards physical appearance, speech, customs, and usages they stand almost entirely apart. They bear such a decided stamp of a Polynesian tribe that one feels far more inclined to compare them with the inhabitants of the South Sea Islands[527]." The survival of an Indonesian group on the western verge of Malaysia is all the more remarkable since the _Nias_ islanders, a little farther north, are of Mongol stock, like most if not all of the inhabitants of the Sumatran mainland. Here the typical Malays of the central districts (Menangkabau, Korinchi, and Siak) merge southwards in the mixed Malayo-Javanese peoples of the _Rejang_, _Palembang_, and _Lampong_ districts. Although Muhammadans probably since the thirteenth century, all these peoples had been early brought under Hindu influences by missionaries and even settlers from Java, and these influences are still apparent in many of the customs, popular traditions, languages, and letters of the South Sumatran settled communities. Thus the Lampongs, despite their profession of Islam, employ, not the Arabic characters, like the Malays proper, but a script derived from the peculiar Javanese writing system. This system itself, originally introduced from India probably over 2000 years ago, is based on some early forms of the Devanagari, such as those occurring in the rock inscriptions of the famous Buddhist king As'oka (third century B.C.)[528]. From Java, which is now shown beyond doubt to be the true centre of dispersion[529], the parent alphabet was under Hindu influences diffused in pre-Muhammadan times throughout Malaysia, from Sumatra to the Philippines.