Across the Universe: Redating Easter? – The Catholic Astronomer


This column first ran in The Tablet in January 2016 The archbishop of Canterbury Justin Welby has recently [2016] announced discussions to redefine the date of Easter. Pope Francis and various leaders of Eastern churches have also expressed interest in a common date that all churches would celebrate together. Easter was originally the Sunday following Passover, the first full moon of the Hebrew year. But the start of the Hebrew year varied from year to year. Jewish months, 29 days long, mirror the phases of the moon, and so every three or four years an extra month is needed to keep that lunar calendar in phase with the seasons. After the destruction of the Temple in AD 70, there was no central Jewish authority to determine when to add that month. Instead, Jews of the Diaspora relied on a Greek formula (devised in 432 BC by Meton) to add seven intercalary months over a repeating 19 year cycle. It was … Continue reading →

Source: Across the Universe: Redating Easter? – The Catholic Astronomer

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