Christianity in Indonesia
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Christianity, although a minority religion in Indonesia, is not evenly spread throughout the archipelago. The island of Sumatra is in most areas almost entirely Muslim, with the exception of the Batak peoples of North Sumatra, who are largely Protestant. The provinces of Java range from 5% Christian up to 12% in the capital Jakarta. In Kalimantan, there are substantial (25-35%) Christian populations (mostly Dayak people) in West, Central and East Kalimantan provinces, while in South Kalimantan the seafaring Banjar people are Muslims, and there is only a small (1-2%) Christian population.
Bali is 90% Hindu, with a few Muslim areas in eastern Bali, neighbouring West Nusa Tenggara province (the islands of Lombok and Sumbawa), which is 96% Muslim, with a minority Balinese Hindu population. In East Nusa Tenggara (dominated by the islands of Flores and Sumba, along with West Timor), over 90% of the population is Christian, with Flores almost entirely Catholic, with a greater dominance of Protestantism in Alor Island, West Timor and Sumba.
In North Sulawesi 65% of the population is Protestant (mostly Minahasa people, over 90% Protestant), with a 7% Catholic minority and most of the rest Muslims. Other provinces of Sulawesi are predominantly Muslim, but in smaller areas there are Christian majorities, notably Tana Toraja West Sulawesi, where 80% are Christian, plus parts of Central Sulawesi. Maluku is split 50/50 between Christian Protestants and Muslims. North Maluku has a 3 to 1 split between Muslims and Christians. Papua province and West Papua province both have Christian majorities.
Chinese Indonesians, in particular, have increasingly embraced Christianity. The 2000 census indicated that 35% of Chinese Indonesians designated themselves as Christian. However, the Chinese Indonesian population in general was probably undercounted. The percentage of Chinese Indonesians who belong to Christian churches continues to increase and may exceed 70 percent.
Bible translation 
The first translation of the Bible ('Alkitab") in Indonesian language was Albert Corneliszoon Ruyl's translation of the book of Matthew (1629). Between then and now at least 22 other translations exist, excluding the translations to local languages of Indonesia (out of more than 700 local languages of Indonesia, more than 100 languages have portions or whole Bible translated, while some, like Javanese and Batak, have more than one version). The most widespread translation used in Indonesia right now is Terjemahan Baru (1985), or "New Translation" published by LAI ("Lembaga Alkitab Indonesia" or Indonesian Bible Society).
Seminaries and Schools 
Before Indonesian independence, the only seminary was the theological seminary in Bogor. This seminary was founded in 1934 as the Hoogere Thoelogishe School (Higher School of Theology) and is now known as STT (Sekolah Tinggi Theologia) Jakarta. As of 2002, Indonesia claimed more than 100 theological seminaries, with 29 seminaries representing 70% of students being members of PERSETIA (Association of Theological Schools in Indonesia). Other seminaries belong to PASTI (evangelical association) or PERSATPIM (Pentecostal association).
Early General History 
A 12th Century Christian Egyptian record of churches suggest that a church was established in Barus, on the west coast of North Sumatra, a trading post known to have been frequented by Indian traders, and linked therefore to the Indian Saint Thomas Christians. No record nor trace of such a community remains, and the first significant evidence of Christian activity came with the arrival of Portuguese traders in the 16th century.
The Portuguese arrived in the Malacca Sultanate (modern-day Malaysia) in 1509 seeking access to its wealth. Although initially well-received, the capture of Goa as well as other Muslim-Christian conflicts convinced the Malaccan Muslims that the Portuguese Christians would be a hostile presence. The resulting capture of Malacca is believed to have enhanced a sense of Muslim solidarity against the Christian Portuguese, and ongoing resistance against the Portuguese came from Muslim Aceh as well as from the Ottoman Empire. Although the Portuguese built some churches in Portuguese Malacca itself, their evangelical influence in neighbouring territories was perhaps more negative than positive in promulgating Christianity.
Bali, unlike neighbouring Java, retained its Hindu culture when Islam came to the Indonesian archipelago, even gaining strength in this with the absorption of Javanese Hindus not wishing to convert to Islam. The Dutch began to build a presence on the island after 1846 in Singaraja, subduing it entirely in 1908. Three missionaries from the Protestant Utrecht Mission Society began work around Singaraja in 1864. Only one Balinese was baptised, and in 1881 following a disagreement, he conspired to have one of the missionaries murdered.
Subsequently the Dutch government forbade further missionary activity, wishing to avoid further such disruption. In 1930, a Chinese-speaking missionary from CAMA (see also above), obtained permission to work in Bali, in order to serve the needs of Chinese Christians. Several hundred native Balinese decided to convert. The reaction of the Hindu Balinese to the missionary's edicts - to destroy idols and temples as being of the devil - was hostile - the Christian converts had their rice fields sabotaged and they were expelled from their villages. As a result the Dutch again withdrew permission to preach from foreign missionaries, as of 1933, on the basis that the missionary had not kept to the Chinese commununities, but had also preached to the native Balinese.
A native Javanese missionary began work in Bali in 1933, and in 1937 the Dutch posted a minister to Denpasar of the Dutch 'Indische Kerk', catering for Europeans in the first instance, but also to the 1000+ Protestant Balinese, while a Catholic priest was posted to Denpasar in 1935, from where several hundred Balinese converts were made in several years.
A Dutch response to the hostility of the Balinese to Christian converts was to establish a Protestant village in Bali, that of Blimbingsari, in 1939. Palasari, its neighbour, a Catholic village, was established in 1940.
Blimbingsari village developed the Gereja Kristen Protestan Bali, the Balinese Protestant church, which was established in 1948. In its early years the GKPB and its antecedent followed the theology of Hendrik Kraemer in the Dutch Reformed tradition, explicitly rejecting most of Balinese culture as heathen and unchristian, disposing of gamelan orchestras in favour of Western arts. As a result, many Balinese Protestants left Bali, where they were largely excluded from everyday Balinese life, to the extent that there are more GKPB members outside of Bali than within Bali.
In 1972 native Balinese I Wayan Mastra, who grew up in a Balinese Hindu family, but converted to Christianity while at a Christian school in Java, became head of the GKPB church, and began a process of Balinisation. For instance, when the Blimbingsari church, a basic stone and wood building was destroyed by earthquake in 1976, it was rebuilt in more Balinese pendopo style, with a garden with running water, traditional Balinese entrance and a semi-open aspect. Subsequent GKPB churches have followed a similar pattern. The Balinese Catholic church was from the beginning more open to Balinese traditions.
Batavia (Jakarta) 
As the centre for the VOC in the Indies, there were many European Christians as well as Asian Christians from areas proselytized by the Portuguese. The predominant denomination in Batavia was Dutch Reformed but there were also Lutherans and Catholics. The Dutch governors constructed Reformed churches, for Portuguese, Dutch and Malay speakers. Other religions were formally prohibited, but in practice Chinese temples as well as mosques remained in existence, and despite various measures to promote Christianity, there was a high degree of religious diversity and never at any time a Christian majority. At other VOC settlements clergy were likewise provided, such as at Semarang, where the minister had a congregation that was only half Reformed and half Catholic or Lutheran and consequently efforts were made to provide inclusive preaching. Largely however, the VOC had little impact or interest in upsetting their business interests in favour of religious ideals, and indeed the theology of the Dutch Reformed church was opposed to the mass baptism adopted by Catholic missionaries, and their impact on Java as a whole was very minor.
East Nusa Tenggara 
Portuguese traders ventured from Malacca to Timor to purchase sandalwood. During their trading missions they were frequently becalmed, and during this time are said to have converted numerous people of Solor island, Timor and Flores. Hearing of these conversions, three Dominican missionaries were sent from Malacca, arriving and establishing a church in 1562 in Flores. The mission was given financial support from the Portuguese in Goa, enabling the construction of mission stations in the area.
A major setback came when two headmen were imprisoned and mistreated by the Portuguese in 1598, resulting in a rebellion and desecration of churches throughout the region, as those opposed to the Portuguese, many of whom had been previously converted to Islam in the early 16th century, attacked the Portuguese and the Dominican mission. Subsequent setbacks came in the form of the arrival of the Dutch, who allied against the Portuguese Christians.
A new mission was established in 1617, which successfully furthered the spread of Catholicism in the region, including minor military ventures led from Larantuka on Flores, rejecting the dominionship of Islamic Makassar. 'Black' Portuguese control over Larantuka, and influence also over Timor, was settled by truce with the Dutch in 1661. The Catholic community in east Flores was strengthened by the expulsion of Catholics from Makassar in 1660. In Portuguese Timor the Portuguese mission at Lifau (which supported the nominal cathedral of the Diocese of Malacca, as the Dutch would no longer tolerate one there) was in conflict with the Dutch at Kupang, and wars were fought between the two sides with Catholic villages regarded as Portuguese and therefore enemies of the Dutch. In the first half of the 18th century 'Portuguese'-supporting factions were defeated entirely by the Dutch in West Timor, confining Catholicism to the eastern part of that island.
The Dominican mission declined in the late 18th century, and in 1817 the last priest covering Flores died. Many Catholics reverted to pagan practices, but still thousands remained, continuing to follow Catholic pageantry. Portugal, severely weakened, withdrew from all but East Timor, but thanks to treaties signed in the 1850s, freedom of religion was guaranteed in areas being exchanged between the two countries. Following this treaty Catholicism strengthened considerably in Flores after 1860.
The Rhenish Missionary Society 
The German Rhenish Missionary Society visited Banjarmasin and West Kalimantan in 1829. Following this two missionaries were sent in 1834, and in total between 1834 and 1859 20 missionaries were sent to the region, although mortality rates were high and never more than 7 were active at one time. Permission for the activity from the Dutch government was obtained after 1836.
Although the mission was headquartered in Banjarmasin, where the pastoral needs of European residents were supplied, it was apparent that converting the Muslims who dominate the cities of Kalimantan was an impossible task, and instead efforts were focused on the 'Dayak' people of the interior, who practised traditional religions. Johann Becker, a capable linguist, translated the gospels into the Dayak Ngaju language.
The missionaries also bought 1100 Dayak slaves over the period 1836 to 1859 in order to emancipate them as free men. Despite their efforts, only a few hundred were baptised. In 1859 the Banjarmasin War broke out, several missionaries were killed, and the mission was excluded from the region until 1866 by the Dutch, which fought to bring the former Sultanate of Banjarmasin under direct rule.
In 1866 the missionaries returned. Despite building many mission stations and schools, only 3,000 had converted by 1911, as against 100,000 Batak Christians in the similarly resourced Rhenish mission of North Sumatra. It has been suggested that this slow progress was due to the fragmented nature of the Dayaks - with no king or dominant regional powers, there was little prospect of mass conversion, while new converts faced exclusion from their traditional ceremonies.
After World War 1, the RMS was replaced by the Basel Mission. It transferred control to the first independent church, the 'Gereja Dayak Evangelis', in 1935, covering a vast geographical area from Banjarmasin 1300 km to the west and 600 km inland. In 1950 the church became the more ethnically inclusive 'Gereja Kalimantan Evangelis' (GKE) as transmigrants from other parts of Indonesia to Kalimantan joined the congregation. The church has approximately 250,000 members, and is based in Central Kalimantan.
Catholic Church 
The Vatican agreed a Concordat with the Dutch in 1847 that Kalimantan was a possible mission area, provided they did not settle on rivers where other missionaries were already active.
Chinese, historically a major force in West Kalimantan, included among their number some Catholics, who had migrated from other parts of the region. A first church was consecreated in Singkawang in 1876, and from here in 1885 the post was established as a pastoral centre for the Jesuit priest who would be responsible for the area. A mission to the Dayaks of Sejiram was established in 1890, and a church constructed. The Singkawang and Sejiram missions closed in 1896 and 1898 respectively, due to lack of personnel.
The mission was re-established in Singkawang with Capuchin Friars in 1905. The first new missions (1905–1913) were aimed at the coastal Chinese of Pamangkat, Pontianak (location of West Kalimantan's Bishop, as it was the largest town in the region) and Sambas, as well as the deep Dayak interior, where the Catholics hoped to convert without competition from Islam, before working back towards the coast.
The Catholic training centre was established at Nyarumkop, close to Singkawang, where children (mostly Dayak, as the Chinese were less inclined towards Catholicism in West Kalimantan than in other parts of Indonesia - in 1980 only 3% of Chinese in West Kalimantan were Catholics) were educated and Catholic teachers trained.
Catholic growth prior to World War Two was slow, but subsequently saw some success, most notably after 1965 and the New Order (Indonesia), where all Indonesians were required to proclaim an approved religion. Growth in the Catholic population from 1950 to 2000 in the Roman Catholic Archdiocese of Pontianak was from 1.1% to 8.7%, in the Roman Catholic Diocese of Sintang from 1.7% to 20.1%. In the Roman Catholic Diocese of Sanggau, just over 50% of the population are now Catholic, while in the Roman Catholic Diocese of Ketapang it is around 20%. Catholic presence in East and South Kalimantan is much lower than the West Kalimantan Dioceses.
Christian and Missionary Alliance 
Missionaries of the Christian and Missionary Alliance began one of several Indonesian missions in East Kalimantan in 1929 in the region of Kutai. George Fisk, the lead missionary, asked only that new converts accept Jesus as their saviour, unlike the Catholics, who required two years of teaching. The West Kalimantan mission, established in 1933 in Pontianak ventured up the Kapuas River, where they found existing Catholic converts, some of whom converted to Protestantism. The Catholics however had an advantage over the CAMA Protestants in that CAMA, but not the Catholics, prohibited the consumption of alcohol.
The CAMA mission acted quickly in establishing churches in the interior, obtaining the use of an airplane from CAMA, and became part of the Kemah Injil Gereja Masehi Indonesia, or Tabernacle Gospel Messianic Indonesian church.
In 1990 the church had 98,000 members in East Kalimantan, and 62,000 in West Kalimantan, making it the third-largest Christian denomination in Kalimantan after the Catholic Church and the GKE.
While the Portuguese religious influence over Malacca and Sumatra was very small, their mission to Maluku, the important spice islands of the eastern archipelago was more significant. They landed first in Ambon, where the natives were already polarised into 'uli-lima' (group of five) and 'uli-siwa' (group of nine), the former having converted to Islam and allying with the Muslim Javanese, with the latter retaining traditional beliefs. The Portuguese found themselves allied with the ulu-siwa, whose opposition to the uli-lima made Christianity an appealing choice.
The Islamic Sultanate of Ternate sought the patronage of the Portuguese, offering a trading monopoly in return for military support against rival local kingdoms. In 1534, the first Roman Catholic community was established in Halmahera, the result of an appeal to the Portuguese for protection from Halmahera against Ternatean incursions, protection offered conditional on converting to Christianity.
Further evangelising resulted in many Ternate nobles converting to Christianity, while Francis Xavier, a Roman Catholic missionary and co-founder of the Jesuit Order worked in Ternate, Moro and Ambon briefly in 1546 and also 1547. St Francis wrote that most of the population were 'pagan', and hated the local Muslims, resisting conversion to Islam. He appealed for support to save souls in Maluku, which arrived in 1547 in the shape of Nuno Ribeiro, a Jesuit who is said to have converted five hundred people before being murdered in 1549.
Sultan Hairun of Ternate had refused to convert to Christianity, regarding himself as defender of the Islamic faith, and when he was murdered by a Portuguese Captain in 1570, his son, Baabullah, the new Sultan, reacted angrily, expelling the Portuguese from Maluku, waging war against both the Portuguese and their local Christian allies. As a result, the Jesuit mission was abandoned almost entirely in 1573, and Christians were killed or converted at the point of a sword. The faith survived only around the Jesuit fort in Ambon; even there, there was a shortage of priests due to dangerous conditions, and many local people did not have knowledge of Christian creeds, and were easily apostatized to Islam or traditional beliefs.
The Portuguese by now largely impotent, the Dutch, allied with the Muslim locals against their mutual Portuguese enemy, seized the fort of Ambon in 1605. The Dutch expelled the Jesuits and Portuguese, adopting the Catholic churches for Protestant worship, which was supported through the establishment of numerous Protestant schools, where the teachers also led Sunday worship. Boundaries between Muslim and Christians were well-established on Ambon, but in Seram and Buru, proselytisation took place converting 'pagans' to Christianity, the policy of the VOC being to contain the spread of Islam without converting existing Muslims. Idols were destroyed by the Dutch teachers as new Christians were prohibited from continuing to follow their traditional religion.
Papua, unlike the rest of Indonesia, has had no historic contact with Muslim evangelists, and had its first Christian missionary contact in 1855. With little competition, the mission was relatively successful. Missionaries Carl Ottow and Johann Geisler, under the initiative of Ottho Gerhard Heldring, entered Papua at Mansinam island, near Manokwari on 5 February 1855, and are said to have knelt on the beach and prayed, claiming Papua for Christ. Since 2001, the fifth of February has been a Papuan public holiday, recognizing this first landing.
Ottow and Geisler studied the Numfor language, and were subsequently granted a monthly stipend by the Dutch government. The missionaries proposed a scheme to start a tobacco plantation using Christian Javanese to train the Papuans, and were given 5,000 guilders by the Dutch and two Christian Javanese tobacco farmers. The Dutch administrators perceived the missionaries activities as a cut-price means of colonisation, while the missionaries themselves made profits from trading Papuan goods. The Utrecht Mission Society (UZV) joined the mission from 1863; they were prohibited from trade, and instead established a trading committee.
The UZV established a Christian-based education system as well as regular church services. Initially the Papuans' attendance was encouraged using bribes of betel nut and tobacco, but subsequently this was stopped. In addition, slaves were bought to be raised as step children and then freed. By 1880, only 20 Papuans had been baptised, including many freed slaves.
The Dutch government established posts in Netherlands New Guinea in 1898, a move welcomed by the missionaries, who saw orderly Dutch rule as the essential antidote to Papua paganism. Subsequently the UZV mission had more success, with a mass conversion near Cenderawasih Bay in 1907 and the evangelization of the Sentani people by Pamai, a native Papuan in the late 1920s. Due to the Great Depression, the mission suffered a funding shortfall, and switched to native evangelists, who had the advantage of speaking the local language (rather than Malay), but were often poorly trained. The mission extended in the 1930s to Yos Sudarso Bay, and the UZV mission by 1934 had over 50,000 Christians, 90% of them in North Papua, the remainder in West Papua. By 1942 the mission had expanded to 300 schools in 300 congregations.
The first Catholic presence in Papua was in Fakfak, a Jesuit mission in 1894. In 1902 the Vicariate of Netherlands New Guinea was established. Despite the earlier activity in Fakfak, the Dutch restricted the Catholic Church to the southern part of the island, where they were active especially around Merauke. The mission campaigned against the destructive practices of headhunting and promiscuity among the Marind-anim. Following the 1918 flu pandemic, which killed one in five in the area, the Dutch government agreed to the establishment of model villages, based on European conditions, including wearing European clothes, but which the people would submit to only by violence
In 1925 the Catholics sought to re-establish their mission in Fakfak; permission was granted in 1927. This brought the Catholics into conflict with the Protestants in North Papua, who suggested expanding to South Papua in retaliation. The Catholics and Protestants also began a race for the highlands.
After World War Two, New Guinea remained outside of Indonesian control, under Dutch administration, but in 1963, it was absorbed under dubious circumstances into Indonesia. The Indonesians were suspicious of 'Dutch' elements, which included church teachers and missionaries, who had been educated in Dutch fashion, and began an overnight Indonesianization. Papua acquired a significant population of mostly Muslim transmigrants, who were given land and a house by the Indonesian government. Religious differences as well as cultural with Muslim Indonesian army and administrators have exarcebated the Papua conflict, in which over thousands of Papuans have been killed by Indonesian security forces. Some human right groups like the IWGIA estimate the number of killed Papuans to be over 100,000. The majority of government resources were directed to non-Papuan Muslims rather than Papuan Christians, and non-Papuan Muslims were also given senior administrative roles. Church leaders, suspected of Papuan nationalism, were strictly monitored and in many cases killed where they strayed too close to Papuan separatist movements.
Southern Sulawesi 
The pork-eating leaders of Makassar in southern Sulawesi expressed an interest in Christianity on several occasions in the 16th century, and while a request was made to Malacca for missionaries, none were forthcoming, perhaps because of the lack of commercial opportunities (spices) in the area, and from 1605 the area converted to Islam, having received instruction in the faith from Johor. Subsequently, following the fall of Portuguese Malacca, many Catholics, including Jesuit priests, fled to Makassar, which was tolerant of their faith, but by 1660 the Dutch forced the expulsion of the Portuguese, who fled to Macau and Flores.
Northern Sulawesi 
The Portuguese baptised over a thousand in Manado, where the Portuguese, and Christianity, were seen as a bulwark against Ternate, the powerful sultanate directly due east. Portuguese missionary activity continued in northern Sulawesi between 1563 and 1570, but following the murder of Sultan Hairun in Ternate and the ensuing anti-Portuguese attacks, the mission was abandoned.
In the Spanish-controlled Sangihe Islands and Talaud Islands in the kingdom of Siau, lying directly north of northern Sulawesi, Catholicism had been adopted with some enthusiasm, and when the allied Dutch-Ternatean Muslim pillaged the islands in 1613 and 1615, help was sought from the Philippines to the north. Franciscans visited from Manila, as did a Jesuit mission.
Jesuit missionariess were also active in Minahasa and neighbouring areas in the first half of the 17th century, but attacks from Muslims from Ternate as well as local animist peoples meant that priests had a short life expectancy. From 1655 to 1676 the Dutch established firm control of northern Sulawesi, and Catholicism was prohibited by the ruling VOC. With Catholicism harshly suppressed, as in Ambon in Maluku, the people of Minahasa, the Sangihe and Talaud islands are to this day almost entirely Protestant (the Dutch replacing the Catholic infrastructure with the schools of Dutch Protestantism), although in the 20th century fresh Catholic mission activity commenced.
The Batak mission 
The largely mountainous 'Bataklands' of North Sumatra were surrounded to the north by the staunchly Islamic Acehnese, to the south by the Islamic Minangkabau and to the east by the Malays (also Muslims). The 'Bataks' were regarded by outsiders as a race of pagan cannibals, and it was largely their rejection of Islam that distinguished them from their neighbours. At the turn of the 19th century the southernmost Batak people, the Mandailing came, through their subjection in the Padri War, to follow Islam, rejecting traditional beliefs and, frequently, their identity as 'Batak'.
Further north however, Batak proved more resistant to the hostile Muslim invaders, and receptive indeed to Christianity. The first missionaries were sent by Stamford Raffles in 1824, at which time Sumatra was under temporary British rule. They observed that the Batak seemed receptive to new religious thought, and were likely to fall to the first mission, either Islamic or Christian, to attempt conversion.
A second mission that in 1834 of the American Board of Commissioners for Foreign Missions met with a brutal end when its two missionaries were killed by Batak resistant to outside interference in their traditional adat.
The first Christian community in North Sumatra was established in Sipilok, a community of (Batak) Angkola people. Three missionaries from an independent church in Ermelo, Netherlands arrived in 1857, and on 7 October 1861 one of the Ermelo missionaries united with the Rhenish Missionary Society, which had been recently expelled from Kalimantan as a result of the Banjarmasin War.
The mission was immensely successful, being well supported financially from Germany, and adopted effective evangelistic strategies led by Ludwig Ingwer Nommensen, who spent most of his life from 1862 until his death in 1918 in North Sumatra, successfully converting many among the Simalungun and Batak Toba as well as a minority of Angkola. Nommensen initially established Huta Dame, his 'village of peace', as Christian converts were excluded from their home villages, becoming knowledgeable in matters of Batak custom. Nommensen's success was supported by Peter Johannsen, who arrived in 1866, and has been praised for the quality of his Batak translations, as well as by respected Batak Raja Pontas, an early convert. Nommensen's theology saw Christianity as renewing rather than replacing traditional Batak customs, except in cases where adat were in direct contradiction to the Christian faith. The Huria Kristen Batak Protestan or HKBP (Batak Protestant Christian community) is the church that was formed from Nommensen's actions. To meet the desire for education, a seminary was established, along with elementary schools in Christian villages. By 1918, on Nommensen's death, his church comprised 180,000 members, with 34 ministers and 788 teacher/preachers. The distinct identity of Batak Toba people, separate from their Muslim neighbours, and their future role within Indonesia was thus assured.
As the process of decolonising continued following World Wars 1 and 2, the HKBP continued to grow, not just in the tanah Batak, but also in Java and Medan, where many Bataks were seeking economic opportunities. The congregation grew 50% between 1951 and 1960, by which time it had reached 745,000. A growing disquiet at Toba 'imperialism' resulted in the establishment of the Gereja Kristen Protestan Simalungun and Gereja Kristen Protestan Angkola in the 1960s, both of which were expressions of a movement towards the native Simalungun and Angkola languages and traditions as against those of the Toba among their communities. In 1992, the Gereja Kristen Protestan Pakpak-Dairi, of the Pakpak-Dairi people was split from the HKBP.
While the traditional Batak church grew through rejecting only 'negative' adat, there is a more-recent anti-adat movement among Pentecostalists that perceives non-Christian elements of Batak culture, such as ulos as satanic.
Karo Church 
The (Batak) Karo people were harassing European interests in east Sumatra, and Jacob Theodoor Cremer, a Dutch administrator regarded evangelism as a means to suppress this activity. The Netherlands Missionary Society answered the call, commencing activities in the Karolands in 1890, where they engaged not only in evangelism, but also in ethnology and documenting the Karo culture. The missionaries attempted to construct a base in Kabanjahe in the Karo highlands, but were repelled by the suspicious locals.
In retaliation the Dutch administration waged a war to conquer the Karolands, as part of their final consolidation of power in the Indies. The Karo pereceived Christianity as the 'Dutch religion', and its followers as 'dark-skinned Dutch'. In this context, the Karo church was initially unsuccessful, and by 1950 the church had only 5,000 members. In the years following Indonesian independence the perception of Christianity among the Karo as an emblem of colonialism faded, with the church itself adopting more elements of traditional Karo culture such as music (previously the brass band was promoted), and by 1965 the Karo church had grown to some 35,000 members, with 60,000 baptised in 1966-1970. At the same time, Islam was also being seen as increasingly attractive. From 5,000 Muslims (mostly non-Karo) in Karoland in 1950, there were 30,000 in 1970. Although the Gereja Batak Karo Protestan (GBKP) is the largest Karo church there are also Catholic (33,000 members as of 1986) and several Pentecostalist denominations.
The 19th century 
After the collapse of the VOC and defeat by the English, the Indies were eventually restored to the Dutch in 1815. By this time the separation of church and state had been established in The Netherlands. This meant that the pretence of a Protestant monopoly in the Indies was abandoned, and in 1826 the Apostolic Prefecture of Batavia was established.
As of 1800, there were an estimated 40,000 indigenous Protestants, in northern Sulawesi, central Maluku and Timor, as well as approximately 11,000 Catholics in east Flores and the islands around. This out of a population of a total 7 million represented just 0.7% Christians, against approximately 85% Muslims. Thus it can be seen that in the last two centuries although the proportion of Muslims has remained largely constant in the archipelago, the Christian population has risen rapidly, thanks in large part to the 19th century missionary societies, discussed below.
The 20th century 
In the 1960s due to anti-Communist and anti-Confucian legislation many Communists and Chinese claimed to be Christians. Christians in Indonesia are more free to practice their religion compared to several countries such as China, Malaysia, and some Arab countries. In Papua and North Sulawesi provinces Protestants form the majority of the population. Large populations of Christians are also found around Lake Toba in North Sumatra, Nusa Tenggara Timur, Tana Toraja inland, and Maluku.
Although Indonesia is predominantly Muslim, the missionaries remain free to spread the Christian religion in Indonesia And many Christian schools that teach the Christian religion. Protestants in Indonesia consists of various denominations, namely the Christian and Missionary Alliance, Batak Christian Protestant Church, Pentecostalism, Charismatic Christianity, Seventh-day Adventist Church, True Jesus Church, Mennonite, Methodism, Baptists, The Church of Jesus Christ of Latter-day Saints, Simalungun Protestant Christian Church, Syriac Orthodox Church, and other denominations.
Violence and discrimination against Christians in modern Indonesia 
Forced circumcisions and forced conversions of Christians occurred during the 1999-2002 Muslim-Christian conflict in Maluku, along with attacks on churches throughout Indonesia. The army, especially the special forces unit Kopassus, was accused of aiding the attacks in Maluku, and official response to these attacks was lacking, while the full force of the law was used against those Christians involved in revenge attacks. The 2006 execution of three Catholic citizens in Sulawesi nurtured further fears that the Indonesian state favoured Muslims while penalizing the Christian minority.
Even after the Maluku conflict subsided, Christians are victims of minor, but regular, attacks by radical Muslim organizations such as the Islamic Defenders Front (FPI). In 2005, Indonesians were shocked by the beheadings of three Christian schoolgirls, perpetrated by Muslim extremists in Sulawesi.
In 2010, the U.S. Ninth Circuit Court of Appeals found, for purposes of U.S. immigration law: "[T]he record compels a finding that Christians in Indonesia are a disfavored group." The definition of this term is "a group of individuals in a certain country or part of a country, all of whom share a common, protected characteristic, many of whom are mistreated, and a substantial number of whom are persecuted" but who are "not threatened by a pattern or practice of systematic persecution." The court blamed the rise of anti-Christian sentiment on Suharto consorting with militant Islamic groups in the 1990s in order to maintain his power, noting that he had 'purged his cabinet and army of Christians and replaced them with fundamentalist Muslims', adding that support and protection for violent Islamic militia such as Laskar Jihad by the military and political elite had continued since Suharto's exit from power. According to the ruling: "Christian churches throughout Indonesia have been burned, bombed, and vandalized by Muslim extremists. These attacks are often accompanied by threats, such as: 'God has no son. Jesus could not help you. Until doomsday, Muslims will not make peace with Christians. Death to all Christians.'"
On February 8, 2011, trial spectators attacked the defendant, prosecutors and judges and Muslim rioters severely vandalized Protestant and Catholic churches, schools, and other property in Temanggung, Central Java in protest that prosecutors only demanded that the court sentence Antonius Bawengan to five years in prison (the maximum sentence permitted by law) for his alleged blasphemy against Islam via distributed leaflets. A local Muslim cleric allegedly demanded that Antonius receive a death penalty. The judge immediately sentenced Antonius to five years in prison. Local Muslim residents reportedly protected a Catholic priest and tried to minimize damage. The local Muslim cleric later received a one year sentence for inciting the Temanggung riot. The Temanggung riot occurred two days after 1,500 Sunni Muslims attacked Ahmadiyya Muslims in Cikeusik, Banten, murdering three.
On the other hand and also in February 2011, a local FPI leader and followers each received at most a 5.5 months sentence and were released based on time served after members of the group struck an HKBP pastor in the head with a wooden plank and stabbed an HKBP elder in the abdomen. The planned, drive-by attack occurred in Bekasi, West Java while the victims were walking to church service and related to local Muslims' objection to church construction. While local human rights activists expressed disappointment in the minimal sentences, no riots occurred. Earlier, in 2010, hundreds of FPI members had attacked congregants during an HKBP church service in Bekasi, beating many women. Police were on site, but provided little protection.
On early Ramadan in August 2011, group of Muslims attacked and burned three churches on Kuantan, Sengingi, Riau Province. Police not giving any clue for reason of burning, Police says its for sake of keeping ramadan peacefully for Muslim.
Non-Muslims experience ongoing discrimination, including obstacles to university entrance and civil service jobs. A survey conducted in 2002 in Jakarta noted that 80% of respondents wanted faiths other than Islam outlawed, 73% wanted non-Muslims excluded from teaching in government schools, and 42% did not want churches constructed in their area. Of particular concern to non-Muslim religious organizations, a 2006 joint ministerial decree on house of worship (signed by the Religious Affairs Ministry and Home Ministry) requires a religious group to obtain the approval of at least 60 households in the immediate vicinity before building a house of worship. This decree has been used frequently to prevent construction of non-Muslim places of worship and has been cited by radical Muslim organizations for various attacks on non-Muslims.
See also 
- Religion in Indonesia
- Roman Catholicism in Indonesia
- Protestantism in Indonesia
- Christmas in Indonesia
- Freedom of religion in Indonesia
- "Penduduk Menurut Wilayah dan Agama yang Dianut" [Population by Region and Religion]. Sensus Penduduk 2010. Jakarta, Indonesia: Badan Pusat Statistik. 15 May 2010. Retrieved 20 Nov 2011. "Religion is belief in Almighty God that must be possessed by every human being. Religion can be divided into Muslim, Christian, Catholic, Hindu, Buddhist, Hu Khong Chu, and Other Religion." Moslem 207176162 (87.18%), Christian 16528513 (6.96), Catholic 6907873 (2.91), Hindu 4012116 (1.69), Buddhist 1703254 (0.72), Khong Hu Chu 117091 (0.05), Other 299617 (0.13), Not Stated 139582 (0.06), Not Asked 757118 (0.32), Total 237641326
- "The population of Chinese Indonesians and Chinese Christians in the Sulawesi provinces and the cities of Medan and Banda Aceh; incidents of violence and state protection available (2006 to March 2010)". Responses to Information Requests. Ottawa, Ontario: The Immigration and Refugee Board of Canada. 17 March 2010. IDN103410.E. Retrieved 15 Feb 2012. "[A]ccording to the 2000 census, 35.09 percent of Chinese Indonesians throughout Indonesia are Christian." Cites omitted
- "Situation of ethnic Chinese Christians in Indonesia (2001 - 2003)". Responses to Information Requests. Ottawa, Ontario: The Immigration and Refugee Board of Canada. 9 December 2003. IDN42199.E. Retrieved 15 Feb 2012. "Approximately three per cent of Indonesia's population is ethnic Chinese , most of whom are Christians[.]"
- "The largest centres of Chinese Indonesian population; reports of attacks in these areas and protection available; whether some areas of Indonesia are considered more welcoming than others to Chinese Indonesians (2004 - 2006)". Responses to Information Requests. Ottawa, Ontario: The Immigration and Refugee Board of Canada. 29 March 2006. IDN101031.E. Retrieved 15 Feb 2012. "The 2000 census, however, does provide information on ethnicity, although the data on Chinese Indonesians is "severely flawed," ***. In the 2000 census, many Chinese Indonesians reportedly did not self-identify due to fears related to the 1998 race riots ***. [Professor] Mackie stated that, "whether the non-reporting Chinese numbered only a small proportion or vastly more in any region, or nationally, is quite unknown and unknowable"" Cites omitted.
- Brazier, Roderick (27 April 2006). "In Indonesia, the Chinese go to church". International Herald Tribune. Retrieved 27 January 2010. "Of the estimated five million ethnic Chinese in Indonesia, well over 70 percent are now Christian."
- (Indonesian) Sejarah Alkitab Indonesia / Ruyl
- (Indonesian) Timeline of Bible translation in Indonesian Language
- (Indonesian) List of local languages of Indonesia with Bible translations
- Timeline of BIble translation in local languages of Indonesia
- Borrong, Robert P.; Ngelow, Zakaria J. (October 2002). "Breeding the Peace Bearers: The (Protestant) Christian Higher Education In Indonesia". Manila Leadership Conference. International Association for the Promotion of Christian Higher Education. http://iapche.org/indonesia.htm. Retrieved 21 March 2012.
- Aritonang, Jan S.; Steenbrink, Karel A. (2008). A history of Christianity in Indonesia. Studies in Christian mission 35. BRILL. p. 825. ISBN 978-90-04-17026-1. Retrieved 21 March 2012.
- Adolf Heuken. Ensiklopedi Gereja (2005). See Also Adolf Heuken, "Chapter One: Christianity in Pre-Colonial Indonesia", in A History of Christianity in Indonesia, eds. Jan Aritonang and Karel Steenbrink, pgs. 3-7, Leiden/Boston: Brill, 2008, ISBN 978-90-04-17026-1
- History of Christianity in Indonesia. Chapter Fifteen
- Seeking the Asian Face of Jesus - Chris Sudgen
- Seeking the Asian Face of Jesus - Chris Sudgen; p. 42
- The Star: Beatific Blimbingsari, March 24, 2007
- History of Christianity in Indonesia. pp. 121-132
- History of Christianity in Indonesia. Chapter Four
- History of Christianity in Indonesia. Chapter 12
- History of Christianity in Indonesia. Chapters 3 and 5
- A History of Christianity in Indonesia - Chapter 8
- IWGIA: The Indigenous World 2006, p. 266 (online)
- History of Christianity in Indonesia. pp. 59-62
- History of Christianity in Indonesia. pp. 62-68
- History of Christianity in Indonesia. pp. 527-569
- History of Christianity in Indonesia p. 530
- History of Christianity in Indonesia. pp. 569-584
- History of Christianity in Indonesia p576
- History of Christianity in Indonesia p141
- International Religious Freedom Report 2001
- Karel Steenbrink/Mesakh Tapilatu (2008), Moluccan Christianity in the 19th and 20th century between Agama Ambon and Islam, in: Jan Sihar Aritonang/Karel Steenbrink (eds.), A history of Christianity in Indonesia. Leiden: Brill, p. 414
- The Age: We must not get back in bed with Kopassus, August 14, 2003
- The Age: After the Bali cocoon falls away, September 25, 2003
- BBC News: Executions spark Indonesia unrest, 22 September 2006
- International Religious Freedom Report 2007, 2008, and 2009
- BBC News: Indonesia beheadings trial opens, 8 November 2006
- Tampubolon v. Holder, 610 F.3d 1056, 1058 (9th Cir. 9 Mar 2010).
- "Violence at blasphemy trial in Central Java". The Jakarta Post. February 8, 2011.
- "Mobs destroy 3 churches in C. Java". The Jakarta Post. February 8, 2011.
- Maryono, Agus (February 10, 2011). "Mixed response for blasphemy verdict". The Jakarta Post.
- "Temanggung riot inciter gets 1 year". The Jakarta Post. June 15, 2011.
- Tampubolon, Hans David (February 25, 2011). "FPI leader gets less than six months for church attack". The Jakarta Post (Jakarta). Retrieved 15 Jul 2011.
- "FPI attacks HKBP church members in Bekasi". The Jakarta Post. August 8, 2010.
- "Polda Riau Tolak Beberkan Motif Pembakaran Gereja GPdI, GBKP dan GMI di Kuantan Sengingi". Kabar Gereja. August 13, 2011.
- "HKBP followers demand revocation of controversial decree". The Jakarta Post. September 16, 2010.