Dr Philipp Nothaft Interview - The Date of Christmas

History for Atheists

My guest today is Dr Philipp Nothaft. Philipp is a Fellow of All Souls Oxford and a historian specializing in astronomy, astrology and calendars in late antiquity, the Middle Ages and early modern Europe. He’s also the author of a key paper on the question of why Christmas falls on December 25th, which is our main topic today. It’s often claimed in pop history that Christians stole a pagan feast day and made it into Christmas, and this is a version of a thesis scholars developed in the late nineteenth century. But Philipp and several other recent scholars have bolstered an alternative theory that seems to fit the evidence better, as he’ll discuss with me today.
Further Reading

Steven Hijmans, “Sol Invictus, the Winter Solstice, and the Origins of Christmas”, Mouseion, Series III, Vol. 3, 2003, pp. 377-98 and his monograph Sol: Image and Meaning of the Sun in Roman Art and Religion Vol. 1 (Brill, 2022).
Thomas C. Schmidt, “Calculating December 25 as the Birth of Jesus in Hippolytus’ ‘Canon’ and ‘Chronicon’” Vigiliae Christianae Vol. 69, No. 5 (2015), pp. 542-563.
Philipp Nothaft, “Early Christian Chronology and the Origins of the Christmas Date: In Defense of the ‘Calculation … Theory'” Questions Liturgiques, 94 (2013), pp. 247-65.