treaties: Ruhut Parsaoron di Habatahon 1898 or The Customs regulating the social life of the Batak (referred to as Ruhut), and Patik dohot Uhum ni Halak Batak 1899 or Laws and Regulations of the Batak people (referred to as Patik). Most of the Toba people are adherents of Protestantism with Lutheranism as the biggest denomination. After Protestantism, Catholicism is the second largest religious belief among the Toba People. Being the largest ethnic group in the Indonesian Protestant community, it is common for Protestant churches in Indonesia to provide service in Toba Batak language. The first Protestant missionaries who tried to reach the Batak highlands of inner Northern Sumatra were English and American Baptist preachers in the 1820s and 1830s but without any success. After Franz Wilhelm Junghuhn and Herman Neubronner van der Tuuk did intensive research on Batak language and culture in the 1840s, a new attempt was done in 1861 by several missionaries sent out by the German Rhenish Missionary Society (RMG). The first Bataks were baptized during this year. In 1864, Ludwig Ingwer Nommensen from the German Rhenish Missionary Society reached the Batak region and founded a village called "Huta Dame" (village of peace) in the district of Tapanuli in Tarutung, North Sumatra. The Batak Christian Protestant Church (Huria Kristen Batak Protestan (HKBP)) is the largest Protestant church in Indonesia. It was founded by the German missionaries and still regarded as the traditional church of the Toba Batak people. In the early 20th century, HKBP disported into several independent Protestant churches such as GKPS (Simalungun) and GKPA (Angkola) to accommodate church services for the Batak people outside of the Toba community. Before the conversion to Christianity, the old belief of the Toba Batak tribe was a mixture of Animism and Hinduism with significant influence of Islam. In the beginning of the 20th century, some Toba Batak Rajahs who refused to embrace Christianity instituted a religion inspired by the pre-Christian Toba Batak beliefs, customs and practices. This religion is called ‘ Ugamo Malim ‘ with its adherents called Parmalim. The Parmalims worship Debata Mula Jadi Nabolon, which means The Great Almighty God. A minority of Toba Batak are adherents of Sunni Islam. Many of the Muslim Toba Batak are originated from port of Barus, Sorkam, parts of Sibolga, and from Asahan areas. They are generally regarded as the original Toba Batak Muslims, although, sometimes the Batak Muslims from these