從古代殷朝漢朝一直到民國，然后到新中國成立，元旦和春節(jié)的演變是一個(gè)很長的歷史過程。

此文簡單的介紹了元旦和春節(jié)的含義及由來。In ancient China, Yuan Dan was not on January 1st, as regulated in the Gregorian calendar. The date of Yuan Dan had been changed many times from the 1st of the 12th lunar month in Yin Dynasty to the 1st of the 1st lunar month in Han Dynasty.在古代，按公歷來說，元旦不是一月一號這一天。元旦的日期從殷朝臘月初一改到漢朝的正月初一。In Jin Shu, compiled by Fang Xuanling in the Tang Dynasty, the first lunar month was called Yuan and the 1st day was called Dan.