Major Chinese Dynasties by Longevity
The history of China is defined by a succession of dynasties that ruled for nearly four millennia, beginning with the semi-legendary Xia Dynasty and ending with the fall of the Qing in 1912. The Zhou Dynasty stands as the longest-lived in Chinese history, spanning 790 years across the Western and Eastern periods. It was during the Eastern Zhou that China saw the intellectual and cultural flourish of the Spring and Autumn and Warring States periods. Following the Zhou, the Qin Dynasty achieved the first unification of China but became the shortest-lived major dynasty, lasting only 15 years before collapsing under the weight of its own legalist rigor and internal strife.
The imperial era saw several "golden age" dynasties that maintained power for centuries. The Han Dynasty, which followed the Qin, ruled for 421 years (interrupted briefly by the Xin Dynasty) and established the cultural identity of the Han people. Other notable long-lived dynasties include the Song (319 years), Tang (289 years), Ming (276 years), and the final dynasty, the Qing (268 years). While these major dynasties provided long periods of stability, China also experienced significant interludes of fragmentation, such as the Northern and Southern Dynasties (169 years) and the Five Dynasties and Ten Kingdoms period (53 years), which served as transitional phases between major unified empires.
Sources: Wikipedia, History Cooperative, China Highlights, WorldAtlas.