in the ancient Roman calendar, were eight days in each month; the first of which fell on the 15th of March, May, July, and October; and on the 13th day of the other months.

They were reckoned backwards, in the manner already explained under the article **CALENDS**.

Thus they called the 14th day of March, May, July, and October; and the 12th of the other months, the pridie idus, or the day before the ides; the next preceding day, they called the tertio idus; and so on, reckoning always backwards, till they come to the nones. See **NONE**. This method of reckoning time is still retained in the chancery of Rome, and in the calendar of the breviary.