Heilongjiang

Heilongjiang is a province in northeast China. It is the northernmost and easternmost province of the country and contains China's northernmost point (in Mohe City along the Amur) and easternmost point (at the confluence of the Amur and Ussuri rivers).

The province is bordered by Jilin to the south and Inner Mongolia to the west. It also shares a border with Russia (Amur Oblast, Jewish Autonomous Oblast, Khabarovsk Krai, Primorsky Krai and Zabaykalsky Krai) to the north and east. The capital and the largest city of the province is Harbin. Among Chinese provincial-level administrative divisions, Heilongjiang is the sixth-largest by total area, the 20th-most populous, and the second-poorest by GDP per capita after only Gansu province.

The province takes its name from the Amur river which marks the border between the People's Republic of China and Russia.

Heilongjiang has significant agricultural production, and raw materials, such as timber, oil, and coal.

The province takes its name from the Amur river, whose name in Mandarin is Heilongjiang ('black dragon river').

Ancient Chinese records and other sources state that Heilongjiang was inhabited by people such as the Sushen, Buyeo, the Mohe, and the Khitan. Mongolic Donghu people lived in Inner Mongolia and the western part of Heilongjiang. Some names are Manchu or Mongolian. The eastern portion of Heilongjiang was ruled by the Bohai Kingdom between the 7th and 10th centuries, followed by the Khitan Liao dynasty. The Jurchen Jin dynasty (1115–1234) that subsequently ruled much of north China arose within the borders of modern Heilongjiang.

Heilongjiang as an administrative entity was created in 1683, during the Kangxi era of the Manchu Qing dynasty, from the northwestern part of the Jilin province. This Heilongjiang Province only included the western part of today's Heilongjiang Province, and was under the supervision of the General of Heilongjiang (Sahaliyan Ula i Jiyanggiyūn) (the title is also translated as the Military Governor of Heilongjiang; jiyanggiyūn is the Manchu reading of the Chinese word 將軍 jiāngjūn; "military leader, general" and is cognate with Japanese shōgun), whose power extended, according to the Treaty of Nerchinsk, as far north as the Stanovoy Mountains. The eastern part of what's today Heilongjiang remained under the supervision of the General of Jilin (Girin i Jiyanggiyūn), whose power reached the Sea of Japan. These areas deep in Manchuria were closed off to Han Chinese migration.

The original seat of the Military Governor of Heilongjiang, as established in 1683, was in Heilongjiang City (also known as Aigun or Heihe, or, in Manchu, Saghalien Ula), located on the Amur river. However, already in 1690 the seat of the governor was transferred to Nenjiang (Mergen) on the Nen River, and, in 1699, further south to Qiqihar. According to modern historians, the moves may have been driven by supply considerations: Nenjiang and Qiqihar are connected by a convenient waterway (Nen River) with southern Manchuria, whereas accessing Aigun (Heihe) would require either sailing all the way down the Sungari River until its confluence with the Amur and then up the Amur to Heihe, or using a portage over the Lesser Xing'an Mountains between the Nen River valley and the Amur valley. An additional advantage of Qiqihar may have been its location at the junction of a northbound road (to Nenjiang) and a westbound one (to Mongolia), enabling its garrison to defend both against the Russians and the Ölöt Mongols.