日出而作,日入而息;月亮圆缺,晦而复明;草木荣枯,寒来暑往:日、月、年这些最基本的时间单位,正是人们制定历法的主要依据。作为以农立国的中华先民,颁历授时在数千年前即已开始,仅因历史资料的湮没,早期的历书实物我们却无从寓目了。本世纪之前,我国传世历书以南宋《宝祐四年(1256年)会天历》为最古;这以前的历书究竟是什么样子,人们 Sunrise and the daily income and interest; the moon is scarce, dark and complex; vegetation Rongkuang, cold to summer: day, month, year these basic unit of time, it is the main basis for people to make calendar. As an ancestor of the nation of China, the promulgation of the title has begun thousands of years ago. Due to the annihilation of historical data and the early almanacs, we have no alternative. Before this century, the biography of the Southern Song Dynasty in our country was the oldest in the Southern Song Dynasty. The Calendar of the Four Kingdoms of Baoyou (1256) was the oldest. What did the previous almanacs look like? People