Also to this early period dates Qerellos, a collection of Christological writings beginning with the treatise of Saint Cyril (known as Hamanot Rete’et or De Recta Fide). These works are the theological foundation of the Ethiopic Church. Another important religious document is Ser'ata Paknemis, a translation of the monastic Rules of Pachomius. Works translated in this period include Physiologus, a work religious interpretation of natural history also very popular in Europe.
