China's Grand Canal is a waterway network extending from Beijing towards Zhejiang. It developed over a long period rather than being created entirely during one dynasty.
When did construction begin?#
UNESCO traces separate sections to the fifth century BCE. The network was conceived as a unified imperial communication system during the Sui dynasty in the seventh century CE. Successive dynasties maintained and expanded it.
What was transported?#
The canal carried grain and strategic raw materials, supported rice supplies and helped imperial administration. By the thirteenth century, UNESCO describes more than 2,000 kilometres of artificial waterways connecting five major river basins. This figure concerns a historical network and should not be substituted for every modern canal-length measurement.
Why study a network rather than one channel?#
The canal's importance lies in the connections between waterways, supply routes and government. A map and a date are both needed when comparing descriptions of its extent.