De Temporum Ratione is a treatise on the reckoning of time written in Latin by the Northumbrian Anglo-Saxon monk Bede. It included an introduction to the traditional ancient and medieval view of the cosmos, including an explanation of how the spherical earth influenced the changing length of daylight, of how the seasonal motion of the Sun and Moon influenced the changing appearance of the New Moon at evening twilight, and a quantitative relation between the changes of the Tides at a given place and the daily motion of the moon. (Wallis 2004, pp. 82-85, 307-312). It described a variety of ancient calendars, including the Anglo-Saxon calendar.[1] Since the focus of his book was calculation, Bede gave instructions for computing the date of Easter and the related time of the Easter Full Moon, for calculating the motion of the Sun and Moon through the zodiac, and for many other calculations related to the calendar. Northumbria is primarily the name of an Anglian or Anglo-Saxon kingdom which was formed in Great Britain at the beginning of the 7th century, and of the earldom which succeeded the kingdom. ... Bede (IPA: ) (also Saint Bede, the Venerable Bede, or (from Latin) Beda (IPA: )), (ca. ... The Germanic calendars were any of the various calendars in use among the Germanic peoples prior to the introduction of the Julian calendar[]. The months were probably lunar; the Old English mónaþ, Old Norse mānaðr, and Old High German mānōd[1], as well as the... Easter, also known as Pascha (Greek Πάσχα: Passover), the Feast of the Resurrection, the Sunday of the Resurrection, or Resurrection Day, is the most important religious feast of the Christian liturgical year, observed between late March and late April (early April to early May in Eastern Christianity). ...

References

• Jones, Charles W., ed. Bedae opera didascalia 2, De temporum ratione, Corpus Christianorum Series Latina, 123B, Turnhout: Brepols, 1997. ISBN 978-2-503-01235-3
• Wallis, Faith, trans. Bede: The Reckoning of Time, Liverpool: Liverpool Univ. Pr., 2004. ISBN 0-85323-693-3.

External links

• De Temporum Ratione in Latin from Patrolgia Latina
• Englisc Rímbóc: The Anglo-Saxon Calendar
• The Anglo-Saxon Calendar
• Anglo-Saxon heathenism
• Spiritual traditions.net