The successive discoveries including the ancient relic cities on the Chengdu plain, the jinsha Relic and the large pirogue coffin relic have traced the urban civilization up to 4500 years.

• 本文认为成都不是如过去所说的只有2300多年的城市文明史,成都平原古城群和金沙遗址、大型船棺群遗址的先后发现,把成都城市的历史上推到距今4500多年前。