Singkil people
Singkil people are an ethnic group of people found in Aceh Singkil Regency and Subulussalam, Aceh province, Indonesia. The customs and culture of the Singkil people are very different from the Pakpak people. This is because of the Singkil people practices Islam, whereas the majority of the Pakpak people practices Christianity. Apart from that the Singkil people have intermarried with the neighbouring ethnic group of people like Acehnese people and Minangkabau people. Language. Singkil language is widely spoken in Aceh Singkil Regency, Subulussalam and part of Southeast Aceh Regency. The Singkil language is very similar to Pakpak language  of North Sumatra. However, the Singkil language have its own uniqueness whereby the alphabet "R" is pronounce as "kh". For example, the word "appearance" in Bahasa Indonesia is "Rupa", while in Singkil language it is "Khupa". Culture. The culture of the Singkil people itself has been greatly influenced by Islamic traditions. Although they may belong to the same clusters of parent-ethnic, the culture of the Pakpak people is vastly different from the Singkil people. This is because the Singkil people are mostly Muslims, while majority of the Pakpak people are Christians. Apart from that, mix marriages among the Singkil  people with other foreign ethnics such as Acehnese people and Minangkabau people occurs more frequently. Religion. Islam is believed to have spread in lands of the Singkil people a few centuries ago by foreign merchants that came from Minangkabau Highlands and later during the rule of the Aceh Sultanate. Many of the Minangkabau people have left traces of their history and their descendants in the coastline region. Abdurrauf Singkil, also known as Syekh Abdur Rauf as-Singkili was once a famous Singkil ulama that was appointed as a head ulama and a mufti in the Acehnese kingdom in 17th century . Surnames. Just as with other sub-ethnic Batak people, the "marga" (family name or surname) of the Singkil people derives from the patrilineal lineage. Generally, the "margas" that are used by the Singkil people are similar to those used by the Pakpak people, Alas people, Kluet people and part of Karo people along with Toba people. Nevertheless, there are "margas" that are different. Several of the "margas" that are found among the Singkil people includes:- There are also a number of Singkil "margas" that originates from the descendants of the Minangkabau people that have assimilated with the Singkil people centuries  ago, such as:-