Orthodoxy.Church

The Unbroken Line

The Timeline

From Creation through the Apostles to the present, one faith has been kept whole. Toggle the layers to follow a single thread or overlay several — and see exactly where others departed.


To scale — every century is the same width. Scroll sideways through the centuries; tap a node for the story.

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In the beginning
The Fall
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c. 1800 BC
c. 1250 BC
c. 1000 BC
c. 8th–5th c. BC
586–538 BC
c. 5 BC
c. AD 33
c. AD 33
1st century
AD 64–313
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AD 325 · Nicaea, Bithynia

First Council of Nicaea

Saint Nicholas of Myra striking the heretic Arius before Emperor Constantine and the assembled bishops at the First Council of Nicaea, AD 325, with Arius's books falling and burning.
Saint Nicholas of Myra striking the heretic Arius before Emperor Constantine and the assembled bishops at the First Council of Nicaea, AD 325, with Arius's books falling and burning.
Ecumenical CouncilsHeresies & Controversies

Against Arius, who denied the Son’s full divinity, the Fathers confessed Him “one in essence (homoousios) with the Father” and gave the Church the Creed (Nicaea, 325).


Precise date