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1575th anniversary: The Council of Chalcedon, a Christian ecumenical council, opened, and went on...

Thu, October 8, 2026

32 days ago

Source

In 451, The Council of Chalcedon, a Christian ecumenical council, opened, and went on to repudiate the Eutychian doctrine of monophysitism and set forth the Chalcedonian Creed.

Also on Oct 8, 2026

Source, method and history
Source
Wikipedia
How we know
Wikipedia "On this day" selected anniversary, 1575 years (451 to 2026).
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annual
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None recorded.