From the Han founder Liu Bang's 206 BCE campaign (per 《
史记·
高祖本纪》). On Han Xin's advice, he openly repaired the plank road to Guanzhong while secretly marching through Chencang (
陈仓, in modern Baoji, Shaanxi) to surprise Zhang Han. The full strategic phrase —
明修栈道,
暗度陈仓 — became one of the 36 Stratagems.