Medan is the capital and largest city of the Indonesian province of North Sumatra. The nearby Strait of Malacca, Port of Belawan, and Kualanamu International Airport make Medan a regional hub and multicultural metropolis, acting as a financial centre for Sumatra and a gateway to the western part of Indonesia. About 60% of the economy in North Sumatra is backed by trading, agriculture, and processing industries, including exports from its 4 million acres of palm oil plantations. The National Development Planning Agency listed Medan as one of the four main central cities in Indonesia, alongside Jakarta, Surabaya, and Makassar. In terms of population, it is the most populous city in Indonesia outside of the island of Java. Its population as of 2023 is approximately equal to the country of Moldova.
North Sumatra, also called North Sumatra Province, is a province of Indonesia located in the northern part of the island of Sumatra, just south of Aceh. Its capital and largest city is Medan on the east coast of the island. It is bordered by Aceh on the northwest and Riau and West Sumatra on the southeast, by coastlines located on the Indian Ocean to the west, and by the Strait of Malacca to the east.
Batak is a collective term used to identify a number of closely related Austronesian ethnic groups predominantly found in North Sumatra, Indonesia, who speak Batak languages. The term is used to include the Karo, Pakpak, Simalungun, Toba, Angkola, Mandailing and related ethnic groups with distinct languages and traditional customs (adat).
Pematangsiantar, and also known as the City of Pematangsiantar, is an independent city in North Sumatra Province of Indonesia, surrounded by, but not part of, the Simalungun Regency, making Pematangsiantar an enclave within Simalungun Regency. Pematangsiantar formerly had the status of a second-level district and was the administrative centre of the surrounding Regency, but in 1986 it was elevated to Kota (City) and separated from the Regency.
The Karo people are a people of the Tanah Karo in North Sumatra, Indonesia. The Karo lands consist of Karo Regency, plus neighboring areas in East Aceh Regency, Langkat Regency, Dairi Regency, Simalungun Regency, and Deli Serdang Regency. In addition, the cities of Binjai and Medan, both bordered by Deli Serdang Regency, contain significant Karo populations, particularly in the Padang Bulan area of Medan. The town of Sibolangit, Deli Serdang Regency in the foothills of the road from Medan to Berastagi is also a significant Karo town.
The Mandailing people are an ethnic group in Sumatra, Indonesia that is commonly associated with the Batak people. They are found mainly in the northern section of the island of Sumatra in Indonesia. They came under the influence of the Kaum Padri who ruled the Minangkabau of Tanah Datar. As a result, the Mandailing were influenced by Muslim culture and converted to Islam. There are also a group of Mandailing in Malaysia, especially in the states of Selangor and Perak. They are closely related to the Angkola and Toba.
Marga is a term in Batak societies referring to a clan name. The term is derived either from the Sanskrit varga, meaning company, party, or group, or, more likely, from the Sanskrit marga, meaning 'road, way or path', referring to a people of 'one origin'.
The Pamalayu campaign was a diplomatic and military expeditionary force sent by the Javanese King Kertanegara of Singhasari to conquer the Sumatran Melayu Kingdom. It was decreed in 1275, though perhaps not undertaken until later.
Gereja Kristen Protestan Simalungun is an Evangelical Lutheran church formally founded to spread Christianity among the Simalungun people, a tribe living in Simalungun, North Sumatra, Indonesia. It has a baptized membership of 211,383.
North Padang Lawas is a landlocked regency in the North Sumatra province of Indonesia. It has an area of 3,918.05 km2, and had a population of 223,049 at the 2010 census and 260,720 at the 2020 census; the official estimate as of mid-2023 was 275,448. North Padang Lawas Regency was created on 17 July 2007 from the eastern parts of the South Tapanuli Regency. Its administrative seat is the town of Gunung Tua.
Simalungun Regency is a regency in North Sumatra Province of Indonesia. Its seat was formerly at Pematangsiantar, but this city was under Law No.15 of 10 March 1986 was separated from the Regency and made into an independent city (kota), although it remains geographically surrounded by the regency, whose new administrative seat is at Raya, while the regency's two most populous districts are Bandar and Siantar. The regency now covers an area of 4,372.5 square kilometres, and at the 2010 census it had a population of 817,720; at the 2020 Census this had risen to 990,246, of whom 497,314 were males and 492,932 were females; the official estimate as at mid 2023 was 1,035,920 - comprising 521,262 males and 514,658 females.
The Toba Batak people are the largest ethnic group of the Batak peoples of North Sumatra, Indonesia. The general term ‘Batak’ is sometimes used to refer to the Batak Toba people, for one thing because the Toba people are the largest sub-group of the Batak ethnicity, for another because they tend to self-identify as merely Batak instead of ‘Toba’ or ‘Batak Toba’, contrary to the habit of the Karo, Mandailing, Simalungun, Pakpak communities who commonly self-identify with their respective sub-groups.
Batak architecture refers to the related architectural traditions and designs of the various Batak peoples of North Sumatra, Indonesia. Six groups of Batak speak separate but related languages: the Angkola, the Mandailing to the south, the Toba, to the north the Pakpak/Dairi, the Simalungun, and the Karo. While the groups are now Muslim or Christian, elements of the ancient Batak religion remain, particularly amongst the Karo.
A bolon house is a Northern Sumatra traditional house in Indonesia. Bolon houses are also tourist objects in Northern Sumatra. Bolon houses are made with wood. The house floor is made with boards. The roof is made with rumbia leaves. Bolon houses have no individual rooms, but the space inside is divided. There is space for the house leader, for family meetings, for daughters who have married but have no house of their own, and for the oldest son who has already married. This space is influenced by Batak culture. In ancient times, bolon houses used to be the place where 13 kings of Batak lived. Today, only a few bolon houses can be found in North Sumatra.
A sopo is a treasury structure in the architecture of the Toba Batak people from North Sumatra, Indonesia. Its form is similar to that of a Batak traditional house with the exception of being smaller in size and a construction ritual that is the opposite of a Batak house. Sopo is used as a repository for various items, e.g. rice, magical items, or trophies. Sopo can also be used as a meeting point for social activities.
Melanchton Siregar was the co-founder and last chairman of the Indonesian Christian Party, and the commander of the Arrow Division, the military wing of the North Sumatra branch of the Indonesian Christian Party. He was also the member of the Central Indonesian National Committee since 1947.
Lundu Panjaitan was a Batak politician and bureaucrat. He began his career in bureaucracy as the assistant for administrative affairs in the office of the Governor of North Sumatra and became the Regent of Central Tapanuli in 1980. Since then, he has been appointed to several high positions in North Sumatra, such as the Head of the Tourism Bureau of North Sumatra, Regent of North Tapanuli, Chairman of the Provincial Investment Coordinating Board of North Sumatra, and the Deputy Governor of North Sumatra.
Radjamin Purba was an Indonesian military officer and politician who served as the Regent of Simalungun from 1960 until 1973.
Urbanus Pardede was an Indonesian Communist and newspaper editor from Sumatra, active both in the Dutch East Indies and independence eras. During the years 1926–30, Dutch authorities arrested him without charge because of his Communist activities and exiled him to the Boven-Digoel concentration camp. He was also a key figure in the East Sumatra revolution of 1946 and became bupati of Simalungan Regency in the early independence era.
Indonesia:
Christianity 60%, 
Sunni Islam 39.3%, Animism [2] 
