Liao civilization

The Liao Civilization or Liao River Civilization (Chinese: 遼河文明), named after the Liao River, is an umbrella term for several ancient civilizations that originated in the Liao basin. It is thought to have first formed in 6,200 BC. This civilization was discovered when Ryuzo Torii, a Japanese archaeologist, discovered the Hongshan culture in 1908.

Large-scale pit-type houses, graves and temples with altars were excavated. It is thought that the Liao civilization may have been "a country" of the prehistoric age.^[1]

A model of the feng shui were excavated from remains of the Hongshan culture.^[2] Ball products such as the jade which made the precursors of Chinese dragon were discovered in remains of Xinglongwa culture. In addition, the oldest pit-comb ware and Liaoning bronze dagger (biwa form bronze sword) were excavated.

It was contemporaneous with the ancient Yellow River civilization and ancient Yangtze civilization.

This region was thought to have been desert for the past 1 million years. However, a 2015 study found that the region once featured rich aquatic resources and deep lakes and forests that existed from 12,000 years ago to 4,000 years ago. It was changed into desert by climate change which began approximately 4,200 years ago.^[3] Therefore, people of the Hongshan culture may have emigrated to the Yellow River in the south approximately 4,000 years ago and later influenced Chinese culture.^[4]

The most ancient populations of the West Liao River valley exhibited a high frequency of Haplogroup N-M231. A study by Yinqiu Cui et al. from 2013 found that 63% of the combined samples from various Hongshan archeological sites belonged to the subclade N1 (xN1a, N1c) of the paternal haplogroup N-M231 and calculated N to have been the predominant haplogroup in the region in the Neolithic period at 89%, its share gradually declining over time. Today, this haplogroup is most common in Finland, the Baltic states, and among northern Siberian ethnicities, such as the Yakuts. Individuals at the Liao civilization were assigned into five different Y sub-haplogroups using diagnostic single nucleotide polymorphisms, namely N1 (xN1a, N1c), N1c, C/C3e, O3a (O3a3) and O3a3c. Ancient samples of the Jinggouzi site situated to the northwest of the Liao civilization were assigned to Haplogroup C-M217. Northern nomads from Jinggouzi might have entered the West Liao River valley, but these Jinggouzi people (closely related to Xianbei and Oroqen)^[5] were culturally and genetically distinct from the original people of the West Liao River valley, who carried the characteristic Haplogroup N-M231 lineage. The Haplogroup O-M122 that was observed among Liao individuals is believed to have spread to the Liao civilization from the Yellow River civilization in the southwest. This lineage is most commonly associated with speakers of Sino-Tibetan languages (such as the Han Chinese).^[6] However, its frequency only began to rise in the Bronze Age, and the ancient Liao River population was different from the Yellow River population. This means the Liao civilization was occupied by a diverse sequence of human cultures that were originally distinct from both the farming populations of the Yellow River and the nomads of the Eurasian steppe.^[7] According to a 2024 study, the increase in haplogroups O2a2-M117 and N1a1-TAT during the Bronze Age is associated with migrations by Yellow River farmers and Eastern Eurasian steppe nomads into the West Liao River valley.^[8]

The formation and development of the Lower Xiajiadian culture population was likely a complex process affected by admixture of ethnically different people. The Lower Xiajiadian culture of the West Liao River included people carrying haplogroups from northern Asia but there was genetic evidence of migration of farmers from the Central Plains (Zhongyuan). The climate of the West Liao River valley was warmer at the beginning of the Early Bronze Age, which may be one of the driving forces for the northward migration of the Central Plains farming population. An archaeological study showed that the painted potteries of the Lower Xiajiadian were influenced by the Erlitou culture. The people of the Dadianzi site of Inner Mongolia received the haplogroup O3 from the immigrants of the Central Plains, and a Lower Xiajiadian individual was identified to possess both the maternal lineage of D4 and paternal lineage of O3-M122. Due to a cooling climate, part of the Lower Xiajiadian culture population migrated to the south and influenced the Central Plains. Among the Yin Ruins relics of Shang Dynasty, artefacts with northern cultural influences have been identified.^[9]

Middle Neolithic West Liao River populations could be modeled as a mixture of Yellow River-related populations (50%), especially Middle Neolithic Yellow River and Early Neolithic Coastal Northern East Asian populations, and Ancient Northeast Asian-related populations (50%). The Middle Neolithic Haminmangha populations from the same region could be modeled as having only Ancient Northeast Asian-related ancestry.^[10] A 2025 study found that Hongshan populations inherited genetic contributions from three main sources: Ancient Northeast Asians (ANA), Neolithic Yellow River farmers (NYR), and Shandong hunter-gatherers (Shandong_HG). The ANA-related ancestry likely came from the earlier local Zhaobaogou culture, while the NYR-related ancestry was associated with the Yangshao culture and may have been introduced indirectly by Middle Neolithic farmers from the Dawenkou culture migrating northward from Shandong. These Dawenkou-related farmers carried about 40% ancestry from an early Neolithic Shandong hunter-gatherer lineage and about 60% from a Yangshao-related lineage.^[11]

The Upper Xiajiadian culture and Bronze Age West Liao River farmers (WLR_BA) can be modeled as a mixture of Amur hunter-gatherers and Yellow River farmers, who immigrated to the region between the Middle and Late Neolithic. This particular ancestral lineage has been associated with Proto-Korean-speakers and present Koreans, Japanese and Manchus.^[12][13][14] Subclades of paternal haplogroups O and C were common, with haplogroup N forming a smaller minority compared to the Lower Xiajiadian culture.^[7] Overall, studies show long-term continuity between WLR_BA populations and modern Koreans, Manchus and Japanese.^[15][16]

According to a 2020 study, WLR_BA populations have higher Siberian affinities compared to preceding WLR populations, who have high Middle Yellow River affinities. This can be explained by climate change making pastoral economies more favorable, attracting migrants who traditionally practiced them. Early Neolithic Amur hunter-gatherers are closely related to the Siberian ancestral component found in WLR_BA and are genetically continuous with present Amur River populations, especially indigenous Tungusic speakers. The Nganasans and Itelmens mixed with Amur hunter-gatherers, with affinities between the two groups persisting to the present day. However, there is no evidence for ancient Amur hunter-gatherers being the direct ancestors of present Amur River populations, suggesting "stratification within the AR gene pool and presumably gene flows between the AR populations during the formation of the present-day populations".^[13]

According to Zhu et al. (2023), WLR_BA populations could be modeled as having 57.6%–61.1% ancestry from Yellow River groups and the rest from Early Neolithic Amur River groups or Middle Neolithic Haminmangha groups. However, WLR_BA_o could be modeled as having 93.8%–100% ancestry from Early Neolithic Amur River groups and the rest from Yellow River groups. In contrast, WLR_BA_o2 could be modeled as having 100% ancestry from Yellow River groups.^[17] Based on autosomal analyses, West Liao River populations from the Middle to Late Neolithic were predominantly of Yellow River ancestry whilst populations from the Bronze Age were equally balanced between Yellow River and Amur River ancestries, reflective of the partial replacement of millet farming with pastoralism.^[18]

Several studies show that the Yellow River ancestry found in ancient West Liao River populations is closely related to middle Yellow River populations, who live in Henan and surrounding provinces.^[13][19][20] Other studies show dual contributions from middle and lower Yellow River populations, with the latter originating from Shandong, especially for post-Late Neolithic West Liao River populations.^[21] Ancient West Liao River populations also have close genetic affinities with modern Qiang people from Wenchuan.^[21][22]

A 2025 study modeled the Hongshan population as a two-way admixture of Early Holocene southeastern Mongolian populations and coastal Shandong hunter-gatherers. The presence of haplogroup N1 is attributed to these southeastern Mongolian populations, who in turn have more Yumin-related ancestry, an Ancient Northeast Asian-related ancestry that's distinct from ancestries like Amur-related ancestry. Conversely, northern Mongolian populations received additional input from Ancient Paleosiberian-related and Amur-related sources. They also contributed to the genetic makeup of Early Neolithic Amur River and Middle Neolithic Haminmangha populations. By 5.7 ka BP, they mixed with southeastern Mongolian populations, who also received Yellow River-related and Hongshan-related input.^[23]

Various Neolithic cultures have been identified in the Xiliao River region. Broomcorn millet and foxtail millet were the main cereal crops, while pigs and dogs were the main domesticated animals found at Neolithic archaeological sites.^[24]

• Xiaohexi culture 小河西文化 (9,000-8,500 BP)
• Xinglongwa culture 兴隆洼文化 (8,200-7,400 BP)
• Zhaobaogou culture 赵宝沟文化 (7,500-6,500 BP)
• Fuhe culture 富河文化 (7,200-7,000 BP)
• Xinle culture 新樂文化 (7,200-6,800 BP)
• Hongshan culture 红山文化 (6,500-5,000 BP)
• Xiaoheyan culture 小河沿文化‎ (5,000-4,000 BP)

Bronze Age cultures of the Xiliao River region are:^[24]

• Lower Xiajiadian culture 夏家店下层文化 (4,000-3,200 BP)
• Liaoning bronze dagger culture 辽宁青铜文化
• Upper Xiajiadian culture 夏家店上层文化 (3,200-2,600 BP)
• Jinggouzi culture 井沟子文化 (2,500-2,150 BP)

• Yangtze civilization
• Yellow river civilization
• Prehistory of China