Northern and Southern dynasties in the context of "Equal-field system"

The Xiongnu (Chinese: 匈奴, [ɕjʊ́ŋ.nǔ]) were a tribal confederation of nomadic peoples who, according to ancient Chinese sources, inhabited the eastern Eurasian Steppe from the 3rd century BC to the late 1st century AD. Modu Chanyu, the supreme leader after 209 BC, founded the Xiongnu Empire.

After overthrowing their previous overlords, the Yuezhi, the Xiongnu became the dominant power on the steppes of East Asia, centred on the Mongolian Plateau. The Xiongnu were also active in areas now part of Siberia, Inner Mongolia, Gansu and Xinjiang. Their relations with the Chinese dynasties to the south-east were complex—alternating between various periods of peace, war, and subjugation. Ultimately, the Xiongnu were defeated by the Han dynasty in a centuries-long conflict, which led to the confederation splitting in two, and forcible resettlement of large numbers of Xiongnu within Han borders. During the Sixteen Kingdoms era, listed as one of the "Five Barbarians", their descendants founded the dynastic states of Han-Zhao, Northern Liang and Helian Xia and during the Northern and Southern dynasties founded Northern Zhou (founded by members of the Yuwen tribe of Xiongnu origin) in northern China.

The Sui dynasty (/swɛɪ/ SWAY) was a Chinese imperial dynasty that ruled from 581 to 618. The re-unification of China proper under the Sui brought the Northern and Southern dynasties era to a close, ending a prolonged period of political division since the War of the Eight Princes. The Sui endeavoured to rebuild the country, re-establishing and reforming many imperial institutions; in so doing, the Sui laid much of the foundation for the subsequent Tang dynasty, who after toppling the Sui would ultimately preside over a new golden age in Chinese history. Often compared to the Qin dynasty (221–206 BC), the Sui likewise unified China after a prolonged period of division, undertook wide-ranging reforms and construction projects to consolidate state power, and collapsed after a brief period.

The dynasty was founded by Yang Jian (Emperor Wen), who had been a member of the military aristocracy that had developed in the northwest during the prolonged period of division. The Sui capital was initially based in Daxing (Chang'an, modern Xi'an), but later moved to Luoyang in 605, which had been re-founded as a planned city. Wen and his successor Emperor Yang undertook various centralising reforms, most notably among them the equal-field system that aimed to reduce economic inequality and improve agricultural productivity, the Five Departments and Six Boards [zh] system, which preceded the Three Departments and Six Ministries system, and the standardisation and re-unification of the coinage. The Sui also encouraged the spread of Buddhism throughout the empire. By the dynasty's mid-point, the state experienced considerable prosperity, enjoying a vast agricultural surplus that supported rapid population growth.

Stone lanterns (灯籠/灯篭/灯楼; Chinese: dēnglóng; Japanese: tōrō, meaning 'light basket', 'light tower') are a type of traditional East Asian lantern made of stone, wood, or metal. Originating in China, stone lanterns spread to Japan, Korea and Vietnam, though they are most commonly found in both China – extant in Buddhist temples and traditional Chinese gardens – and Japan. In Japan, tōrō were originally used only in Buddhist temples, where they lined and illuminated paths. Lit lanterns were then considered an offering to Buddha. Their use in Shinto shrines and also private homes started during the Heian period (794–1185).

Stone lanterns have been known in China as early as the Han dynasty (202 BCE–220 CE), and prevailed from the Wei, Jin, Southern and Northern Dynasties all the way up to the Tang Dynasty, when they were introduced to Japan. The earliest known extant stone lantern in China is the Northern Qi (550-577) stone lantern in the remains of Tongzi Temple in Taiyuan, Shanxi. Other early stone lanterns which date from the Tang Dynasty (618-907) remain extant in several temples around China, such as the stone lantern in Faxing Temple in Zhangzi, Shanxi which was built in 773.

Zhou (/dʒoʊ/), known in historiography as the Northern Zhou (Chinese: 北周; pinyin: Běi Zhōu), was a Xianbei-led dynasty of China (founded by member of Yuwen tribe of Xiongnu origin) that lasted from 557 to 581. One of the Northern dynasties of China's Northern and Southern dynasties period, it succeeded the Western Wei dynasty and was eventually overthrown by the Sui dynasty.

Middle Chinese (formerly known as Ancient Chinese) or the Qieyun system (QYS) is the historical variety of Chinese recorded in the Qieyun, a rime dictionary first published in 601 and followed by several revised and expanded editions. The Swedish linguist Bernhard Karlgren believed that the dictionary recorded a speech standard of the capital Chang'an of the Sui and Tang dynasties. However, based on the preface of the Qieyun, most scholars now believe that it records a compromise between northern and southern reading and poetic traditions from the late Northern and Southern dynasties period. This composite system contains important information for the reconstruction of the preceding system of Old Chinese phonology (early 1st millennium BC).

The fanqie method used to indicate pronunciation in these dictionaries, though an improvement on earlier methods, proved awkward in practice. The mid-12th-century Yunjing and other rime tables incorporate a more sophisticated and convenient analysis of the Qieyun phonology. The rime tables attest to a number of sound changes that had occurred over the centuries following the publication of the Qieyun. Linguists sometimes refer to the system of the Qieyun as Early Middle Chinese and the variant revealed by the rime tables as Late Middle Chinese.

The Sixteen Kingdoms (simplified Chinese: 十六国; traditional Chinese: 十六國; pinyin: Shíliù Guó), less commonly the Sixteen States, was a chaotic period in Chinese history from AD 304 to 439 when northern China fragmented into a series of short-lived dynastic states. Most of these regimes were created by groups such as the Xiongnu, Xianbei, Di, Jie, and Qiang, who had moved into northern and western China over earlier centuries and rose in rebellion against the Western Jin dynasty in the early fourth century. Some states were founded by the Han as well. Regardless of their rulers' background, every state adopted dynastic institutions in the Han tradition and styled itself as a legitimate monarchy. These states often fought one another and also contended with the Eastern Jin dynasty, which governed the south after the collapse of Western Jin in 317. The era ended in 439, when Northern Wei, founded by the Tuoba clan of the Xianbei, reunified the north. The Eastern Jin dynasty had already collapsed in 420 and been replaced by the Liu Song dynasty, the first of the Southern Dynasties. After the consolidation of the north, Chinese history entered the period known as the Northern and Southern Dynasties.

The term "Sixteen Kingdoms" was first used by the 6th-century historian Cui Hong in the Spring and Autumn Annals of the Sixteen Kingdoms and refers to the five Liangs (Former, Later, Northern, Southern and Western), four Yans (Former, Later, Northern, and Southern), three Qins (Former, Later and Western), two Zhaos (Han/Former and Later), Cheng-Han and Xia. Cui Hong did not count several other kingdoms that appeared at the time including the Ran Wei, Zhai Wei, Chouchi, Duan Qi, Qiao Shu, Huan Chu, Tuyuhun and Western Yan. Nor did he include the Northern Wei and its predecessor Dai, because the Northern Wei is considered to be the first of the Northern Dynasties in the period that followed the Sixteen Kingdoms.

Six Dynasties (Chinese: 六朝; pinyin: Liù Cháo; 220–589 or 222–589) is a collective term for six Han-ruled Chinese dynasties that existed from the early 3rd century AD to the late 6th century AD, between the end of the Eastern Han dynasty and the beginning of the Sui dynasty. The Six Dynasties period overlapped with the era of the Sixteen Kingdoms, a chaotic warring period in northern China after the collapse of the Western Jin dynasty, as well as the Northern and Southern dynasties period. The terms "Wei, Jin, Southern and Northern dynasties" (魏晉南北朝) and "Three Kingdoms, Two Jins, Southern and Northern dynasties" (三國兩晉南北朝) are also used by Chinese historians to refer to the same historical era as the Six Dynasties, although the three terms do not refer to the same group of dynasties.

Qi, known as the Northern Qi (traditional Chinese: 北齊; simplified Chinese: 北齐; pinyin: Běi Qí; Wade–Giles: Pei-Ch'i), Later Qi (後齊) or Gao Qi (高齊) in historiography, was a Chinese imperial dynasty and one of the Northern dynasties during the Northern and Southern dynasties era. It ruled the eastern part of northern China from 550 to 577. The dynasty was founded by Gao Yang (Emperor Wenxuan), and was eventually conquered by the Xianbei-led Northern Zhou dynasty in 577.