LaoziLaozi (ˈlaudzə, ), also romanized as Lao Tzu and various other ways, was a semi-legendary ancient Chinese Taoist philosopher, credited with writing the Tao Te Ching. Laozi is a Chinese honorific, generally translated as "the Old Master". Although modern scholarship generally regards him as a fictional person, traditional accounts say he was born as Li Er in the state of Chu in the 6th century BC during China's Spring and Autumn Period, served as the royal archivist for the Zhou court at Wangcheng (modern Luoyang), met and impressed Confucius on one occasion, and composed the Tao Te Ching in a single session before retiring into the western wilderness.
Xia dynastyThe Xia dynasty () is the first dynasty in traditional Chinese historiography. According to tradition, the Xia dynasty was established by the legendary Yu the Great, after Shun, the last of the Five Emperors, gave the throne to him. In traditional historiography, the Xia was later succeeded by the Shang dynasty. There are no contemporaneous records of the Xia, who are not mentioned in the oldest Chinese texts, since the earliest oracle bone inscriptions date from the late Shang period (13th century BC).
Yuan dynastyThe Yuan dynasty (), officially the Great Yuan (; Mongolian: , Yeke Yuwan Ulus, literally "Great Yuan State"), was a Mongol-led imperial dynasty of China and a successor state to the Mongol Empire after its division. It was established by Kublai (Emperor Shizu or Setsen Khan), the fifth khagan-emperor of the Mongol Empire from the Borjigin clan, and lasted from 1271 to 1368. In Chinese history, the Yuan dynasty followed the Song dynasty and preceded the Ming dynasty.
Sui dynastyThe Sui dynasty (sui2, ) was a short-lived imperial dynasty of China that lasted from 581 to 618. The Sui unified the Northern and Southern dynasties, thus ending the long period of division following the fall of the Western Jin dynasty, and laying the foundations for the much longer lasting Tang dynasty. The dynasty was founded by Yang Jian (Emperor Wen of Sui), a member of the ethnically mixed northwestern Chinese military aristocracy which had developed during the previous period of division.
Yellow RiverThe Yellow River is the second-longest river in China, after the Yangtze River, and the sixth-longest river system in Earth at the estimated length of . Originating at an elevation above 15,000 feet (4,600 metres) in the Bayan Har Mountains, it empties into the Bohai Sea. The Yellow River's basin was the birthplace of several ancient civilizations. The yellow sediments were carried downstream from the Loess Plateau. There are frequent devastating floods and course changes produced by the continual elevation of the river bed, sometimes above the level of its surrounding farm fields.
Qin dynastyThe Qin dynasty (ˈtʃɪn ; ), or Ch'in dynasty, was the first dynasty of Imperial China. Named for its heartland in Qin state, it arose as a fief of the Western Zhou and endured for over five centuries until 221 BC, when it evolved into an empire following its complete conquest of other rival states, which lasted only until 206 BC. It was established in 221 BC when Ying Zheng, who became the king of Qin state in 246 BC, declared himself the first emperor (Shi Huangdi). Qin was a minor power for the early centuries of its existence.
Guan YuGuan Yu (AUDGuan Yu.oggguan1-yu3; January or February 220), courtesy name Yunchang, was a Chinese military general serving under the warlord Liu Bei during the late Eastern Han dynasty of China. Along with Zhang Fei, he shared a brotherly relationship with Liu Bei and accompanied him on most of his early exploits. Guan Yu played a significant role in the events leading up to the end of the Han dynasty and the establishment of Liu Bei's state of Shu Han during the Three Kingdoms period.
TrebuchetA trebuchet (trébuchet) is a type of catapult that uses a long arm to throw a projectile. It was a common powerful siege engine until the advent of gunpowder. The design of a trebuchet allows it to launch projectiles of greater weights and further distances than that of a traditional catapult. There are two main types of trebuchet. The first is the traction trebuchet, or mangonel, which uses manpower to swing the arm. It first appeared in China in the 4th century BC.
Three KingdomsThe Three Kingdoms () from 220 to 280 AD was the tripartite division of China among the dynastic states of Cao Wei, Shu Han, and Eastern Wu. The Three Kingdoms period was preceded by the Eastern Han dynasty and was followed by the Western Jin dynasty. The short-lived state of Yan on the Liaodong Peninsula, which lasted from 237 to 238, is sometimes considered as a "4th kingdom". Academically, the period of the Three Kingdoms refers to the period between the establishment of Cao Wei in 220 and the conquest of the Eastern Wu by the Western Jin in 280.
ZhongyuanZhongyuan (), the Central Plain(s), also known as Zhongtu (, lit. 'central land') and Zhongzhou (, lit. 'central region'), commonly refers to the part of the North China Plain surrounding the lower and middle reaches of the Yellow River, centered on the region between Luoyang and Kaifeng. It has been perceived as the birthplace of the Chinese civilization. Historically, the Huaxia people viewed Zhongyuan as 'the center of the world'. Human activities in the Zhongyuan region can be traced back to the Palaeolithic period.
