Batak lands. After three days' journey they reached the high valley of Silindung and spent about two weeks in the Batak region. Considering the shortness of their stay their account reveals very intensive first-hand observation. This was followed in 1834 by Henry Lyman (missionary) and Samuel Munson from the American Board of Commissioners for Foreign Missions who met with a more hostile reception. According to Ida Pfeiffer: "Some time before the arrival of the missionaries the unfortunate Americans presented themselves as religious teachers, the Battakers felt that these people were invaders, and resolving to be beforehand with their tormentors, they killed them and ate them up." Herman Neubronner van der Tuuk was employed by the Nederlands Bijbel Genootschap (Netherlands Bible Society) in the 1850s to produce a Batak–Dutch grammar-book and a dictionary, which enabled future Dutch and German missionaries to undertake the conversion of the Toba and Simalungan Batak. The first German missionaries to the Lake Toba region arrived in 1861, and a mission was established in 1881 by Dr. Ludwig Ingwer Nommensen of the German Rhenish Missionary Society. The New Testament was first translated into Toba Batak by Dr. Nommensen in 1869 and a translation of the Old Testament was completed by P. H. Johannsen in 1891. The complete text was printed in Latin script in Medan in 1893, although a paper describes the translation as "not easy to read, it is rigid and not fluent, and sounds strange to the Batak…[with] a number of errors in the translation." The Toba and Karo Batak accepted Christianity rapidly and by the early 20th century it had become part of their cultural identity. This period was characterized by the arrival of Dutch colonists and while most Batak did not oppose the Dutch, the Toba Batak fought a guerrilla war that lasted into the early 20th century and ended only with the death in 1907 of their charismatic priest-warrior-king Si Sisingamangaraja XII, who had battled the Dutch during the First Toba War with both magic and weaponry. Batak churches The Huria Kristen Batak Protestan (HKBP) Church was established in Balige in September, 1917. By the late 1920s a nursing school was training nurse midwives there. In 1941, the Gereja Batak Karo Protestan (GBKP) was established. Although missionaries ceded much power to Batak converts in the first decades of the 20th century, Bataks never pressured the missionaries to leave and only took control