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First Council of Nicaea
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| First Council of Nicaea | |
|---|---|
 The Council of Nicaea, with Arius depicted as defeated by the council, lying under the feet of Emperor Constantine. | |
| Date | May to August AD 325 |
| Accepted by | |
Next council | First Council of Constantinople |
| Convoked by | Emperor Constantine I |
| President | Hosius of Corduba and Pope Alexander I of Alexandria |
| Attendance |
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| Topics | Arianism, the nature of Christ, celebration of Passover, ordination of eunuchs, prohibition of kneeling on Sundays and from Easter to Pentecost, validity of baptism by heretics, lapsed Christians, sundry other matters.[1] |
Documents and statements | Original Nicene Creed,[2] 20 canons,[3] and a synodal epistle[1] |
| Chronological list of ecumenical councils | |
| Part of a series on the |
| Eastern Orthodox Church |
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| Overview |
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| Oriental Orthodoxy |
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| Oriental Orthodox churches |