这三个节日中，它可能是最古老的一个，可以追溯到公元前227年的战国时代。

Of the three, it is possibly the oldest, dating back to the Warring States Period in 227 B.C..

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学程的其余设计仰赖史前时期和工业化前的时代的三个具体例子放在案例研究上。

The design of the remainder of the subject rests on a case-study approach using three specific examples drawn from the prehistoric period and the pre-industrial era.

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