Appreciation of China Traditional Culture "taichu calendar"

Witty words; Punchline

Calendar is a method of calculating time, specifically, it is about the arrangement of year, month, day and time. China has made many calendars in the long history of agricultural production, and taichu calendar in the Western Han Dynasty is the first relatively complete calendar.

Classical explanation

In the sixth year of Yuanfeng, namely 104 BC, Emperor Wu of the Han Dynasty, at the suggestion of Sima Qian and others, ordered astronomers such as Luo, Zhou and Li to change their calendars and named them calendars. Taichu calendar stipulates that a year is 365.2502 days and January is 29.5086 days. It changed the beginning of the year from October to the first month, and began to adopt twenty-four solar terms convenient for farming, and divided non-neutral months into leap months, thus reconciling the contradiction between the sun and the lunar calendar, which was an epoch-making progress in the history of China.

Taichu calendar also calculated the solar eclipse period as 135 months based on astronomical observations and years of records by historians. Taichu calendar is the first relatively complete calendar in China and the most advanced calendar in the world at that time. It has been used for 189 years since it came out.