In 530AD a monk, Dionysius Exiguus, was commissioned to fix the day and year of the birth of Jesus and in 534AD December 25 was adopted which was reckoned by the law courts as "
dies non".
Zangemeister, 4, "praeteritos
dies non solurn aeque ut hos [i.e., praesentia tempora] graves, verum etiam tanto atrocius miseros quanto 1ongius a remedio verae religionis alienos." Wretchedness is perhaps the same in all epochs, but it is at least palliated by the presence of true religion.