+The [First Council](/wiki/First_Council) of Nicaea, convened in 325 AD by [Emperor Constantine](/wiki/Constantine), was a landmark ecumenical gathering. It sought to unify Christian doctrine, famously producing the [Nicene Creed](/wiki/Nicene_Creed) and addressing the Arian heresy.
+## See also
+- [Arianism](/wiki/Arianism)
+- [Ecumenical Council](/wiki/Ecumenical_Council)
+- [Council of Constantinople](/wiki/Council_of_Constantinople)
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