Reunification and the Grand Canal

What happened

The short-lived Sui dynasty (581–618) reunified China after nearly four centuries of division. Using vast conscript labour, it built the Grand Canal, joining the Yellow and Yangtze river systems so that grain and troops could move between the agricultural south and the northern capitals.

Why it matters

The Grand Canal knit north and south China into a single economy and remained a vital artery for over a thousand years; the Sui reunification set the stage for the golden age of the Tang.

Sources

• World History Encyclopedia. Sui Dynasty · Reputable source