It is unclear when the exact beginning of the New Year celebration in China is. Normally, it was said to start from the year end religious ceremony in Shang Dynasty (1766 BC - 1122 BC). A few said that it started from as early as Emperor Yao and Shun (~2300 BC). At the beginning, the date of celebration varies from mid winter to early spring. With the mature of solar base calendar, Emperor Wu (157 BC - 87 BC) of the Han Dynasty (206 BC - 220) established the first day of the first month as the beginning of the year, where it remains. The following is a brief list