In ancient times, the fifteenth day of the first month was called king, and the fourteenth day of the first month was called king.

Fourteen is hope, which has existed since the Western Zhou Dynasty. However, as the fifteenth day of the first month, it needs to be distinguished from Wangri (fifteenth day), which is more of an ancient astronomical calendar name, corresponding to the new day (first day) and the dark day (thirtieth day).

The former, as the only time to watch the sun in the first month of each year, is generally called "Shangyuan" alone, and "Yuan Ye" at night, because "establishing new things, Shangyuan is the discipline". So we can't simply call it' Hope' Day.

In ancient times, it was called "Zhong" during the day and "Geng" or "Drum" at night. You can also see it on the bell tower and drum tower left by the ancients. In ancient towns, there were bell towers and drum towers. In the morning, the bell rang to tell the time, so it was called "what time" during the day.

In ancient times, the names of months and dates were also different from those of today. A certain day of a month is the common name of the solar calendar in the world today. However, in ancient times, years were distinguished according to their branches, such as the year of the 1898 movement and the year of Shen Bing. There is no "day" after the date. For example, 1 2nd of the lunar calendar is called "the second day of the first month".