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