A notable exception to normative medieval eschatology is found in Joachim of Fiore (c. 1135–1202), a Cistercian monk, who to an extent, stressed premillennial themes. Joachim divided earth's history into three periods. He assigned each age to a particular person of the Trinity as the guiding principle of that era. The first era was the Old Testament history and was accordingly the age of the Father; the current age of the church was the age of the Son; and still in Joachim's future was the age of the Spirit. For Joachim, year 1260 was to mark the end of the second and the beginning of the third and final golden age of earth's history.