十二月份的由来:九月September九月September follows on from Quinitlis and Sextilis, in that it comes from the Latin septem, seven. As with those (and the rest of the calendar), the numbering is a bit off now: September was originally the seventh month in an ancient Roman ten-month calendar, which started with March.September源自拉丁文septem,就是“七”的意思。原来古罗马人只把一年分为十个月,March是一月,而September正好就是七月。