The Zhou lasted 790 years — 236 years longer than the Shang in second place, and close to double the Han's 405. Stretch that span onto a modern calendar and it would reach from the mid Southern Song all the way to 2026. The middle of the table is more surprising still: the Liao (209 years) and the Western Xia (189 years) both outlived the Northern Song (167 years) they fought against. Meanwhile the two unification dynasties every schoolchild knows, Qin and Sui, survived just 15 and 37 years and miss the top fifteen entirely — yet each handed the empire to a successor, the Han and the Tang, that would run for four and three centuries. And a neat coincidence at the tail: the Ming (1368–1644) and the Qing (1636–1912) both lasted exactly 276 years.
Comments