CURRICULUS, in our ancient writers, denotes the year or course of a year. Actum est hoc annorum Dominicæ incarnationis quater quinquagenis et quinques
quinis lustris, et tribus curriculis, i. e. In the year 1028; for four times fifty make two hundred, and five times two hundred make one thousand; five lustres are twenty-five years, and three curriculi are three years.