Dashed left edge = started before this timeline ·
Dashed right edge = still ongoing
Events in 208 BC 1
246 BC – 208 BCConstruction of the Great Wall beginsLinking earlier walls into a unified northern defenceQin Shi Huang ordered the linking and extension of existing northern walls into a continuous defensive barrier against Xiongnu nomads. Hundreds of thousands of workers — soldiers, peasants and convicts — built the wall under brutal conditions. This early wall was largely of earth and wood; the iconic stone wall seen today was built by the Ming dynasty. The wall represents the most ambitious construction project of the ancient world.