Which Chinese dynasty built the Grand Canal?

The Sui dynasty built the Grand Canal, creating the most ambitious waterway network in ancient China. Although earlier states had dug separate canals, the Sui rulers linked and expanded these routes into a continuous north–south transportation system.

Construction accelerated under Emperor Yang of Sui between 604 and 609. The canal connected the political centers of northern China with the wealthy agricultural regions around the Yangtze River, allowing grain, troops, and officials to move more efficiently. Millions of laborers were conscripted, and the human cost was enormous.

A common mix-up is crediting the entire canal to one emperor or assuming it was built in a single project. Earlier canals, including routes associated with the State of Wu and the Qin dynasty, formed parts of the network. Later dynasties, especially the Yuan and Ming, rebuilt and extended it. The Sui achievement was the major unification of these waterways into a strategic imperial route.