A number of Irish annals, of which the earliest was the Chronicle of Ireland, were compiled up to and shortly after the end of the 17th century. Annals were originally a means by which monks determined the yearly chronology of feast days. Over time, the obituaries of priests, abbots and bishops were added, along with those of notable political events. Non-Irish models include Bede's Chronica maiora, Marcellinus Comes's Chronicle of Marcellinus and the Liber pontificalis.[1] Most of the Irish annals were written between the 14th and 17th centuries.[2]