说明：  万年历设计日历在古代是为皇历。日历在日常生活中有着非常重要的作用。有了它，我们的生活更有节奏，有规律。认这个高级动物与低级动物的最大差别在于，认识会思考，会计划的。他们有着有规律的计划。而日历无疑是他们规律计划的媒介。现全世界都在用日历。而在中国，又分为国历和农历。
(Calendar design calendar, in ancient times is almanac. Calendar in their daily lives has a very important role. With it, our lives are more rhythm regular. Recognize this higher animals and lower animals the biggest difference is that awareness will be thinking, will plan. They have a regular plan. The calendar is undoubtedly the law of their media plans. Now the whole world with the calendar. In China, divided into countries and lunar calendar.)