历书,过去又称通书。在封建帝王时代,由于它是皇帝(朱批)颁布的,所以人们又称它为“皇历”。清乾隆时,因为乾隆皇帝的名为弘历,为了避讳,历书又改名为“时宪书”。历书是按一定历法排列年、月、日并提供有关数据的书,在我国已有一千多年的历史了。唐贞元十七年(801)以前,历书是装裱成轴,用毛笔缮写的。据《旧唐书·文宗本记》 Almanac, in the past also known as Tong book. In the era of feudal emperors, because it was promulgated by the emperor (Zhu batch), so people also call it “Emperor”. Qing Emperor Qianlong, because the Emperor Qianlong named Hongli, in order to avoid taboo, the almanac was renamed “when the Constitution ”. Calendar is based on a calendar calendar year, month, day and provide data on the book, in our country has a history of more than a thousand years. Tang Zhenyuan seventeen years (801) Previously, calendar is framed into a shaft, written with a brush pen. According to “Old Tang Wenzong book”