挂历起源于讨债本现代家庭中使用挂历的越来越多，可是，很少有人知道挂历竟是从古时的讨债本演化而成的。在古罗马，有一批专门从事放高利贷的放假人，他们按月向债主收取利息。为了防止差错，他们往往使用一种特殊的小本子。以月为单位，按日期排列，何月何日什么人该还... Calendars originated in the collection of debt to use more and more calendars in the modern home, however, few people know that calendars actually evolved from ancient debt collection. In ancient Rome, there are a group of holidaymakers specializing in usury, who collect interest on creditors on a monthly basis. To prevent mistakes, they often use a special small book. On a monthly basis, according to the date, what month what day should also ...