Explore 9 historical events from 320–329.
The First Council of Nicaea was a council of Christian bishops convened in the Bithynian city of Nicaea by the Roman Emperor Constantine I, also known as the First Ecumenical Counc…
The First Council of Nicaea, the first ecumenical council of the Christian Church, was formally opened by Constantine th
The First Council of Nicaea was a council of Christian bishops convened in the Bithynian city of Nicaea by the Roman Emperor Constantine I, also known as the First Ecumenical Counc…
The First Council of Nicaea (depicted), the first ecumenical council of the Christian Church, was formally opened by Con
The First Council of Nicaea was a council of Christian bishops convened in the Bithynian city of Nicaea by the Roman Emperor Constantine I, also known as the First Ecumenical Counc…
The First Council of Nicaea is formally opened, starting the first ecumenical council of the Christian Church
Athanasius I of Alexandria, also called Athanasius the Great, Athanasius the Confessor, or, among Coptic Christians, Athanasius the Apostolic, was a Christian theologian and the 20…
Athanasius is elected Patriarch of Alexandria
The Nicene Creed is the defining statement of belief of Nicene Christianity and in those Christian denominations that adhere to it.
The original Nicene Creed is adopted at the First Council of Nicaea
The civil wars of the Tetrarchy were a series of conflicts between the co-emperors of the Roman Empire, starting from 306 AD with the usurpation of Maxentius and the defeat of Seve…
Civil wars of the Tetrarchy: Roman emperor Constantine the Great defeated his former colleague Licinius at the Battle…
Valentinian I, sometimes known as Valentinian the Great, was Roman emperor from 364 to 375. He is the second-last emperor to govern the empire as a whole, albeit only from February…
Valentinian I, Roman emperor (died 375)
The Battle of Adrianople was fought in Thrace on July 3, 324, during a Roman civil war, the second to be waged between the two emperors Constantine I and Licinius. Licinius was sou…
Battle of Adrianople: Constantine I defeats Licinius, who flees to Byzantium.
Constantine's Bridge was a Roman bridge over the Danube used to reconquer Dacia. It was completed in 328 AD and remained in use for four decades.
The official opening of Constantine's Bridge built over the Danube between Sucidava (Corabia, Romania) and Oescus…
Constantine's Bridge was a Roman bridge over the Danube used to reconquer Dacia. It was completed in 328 AD and remained in use for four decades.
The official opening of Constantine's Bridge built over the Danube between Sucidava (Corabia, Romania) and Oescus…
Athanasius I of Alexandria, also called Athanasius the Great, Athanasius the Confessor, or, among Coptic Christians, Athanasius the Apostolic, was a Christian theologian and the 20…
Athanasius is elected Patriarch of Alexandria
The First Council of Nicaea was a council of Christian bishops convened in the Bithynian city of Nicaea by the Roman Emperor Constantine I, also known as the First Ecumenical Counc…
The First Council of Nicaea is formally opened, starting the first ecumenical council of the Christian Church
The Nicene Creed is the defining statement of belief of Nicene Christianity and in those Christian denominations that adhere to it.
The original Nicene Creed is adopted at the First Council of Nicaea
The First Council of Nicaea was a council of Christian bishops convened in the Bithynian city of Nicaea by the Roman Emperor Constantine I, also known as the First Ecumenical Counc…
The First Council of Nicaea (depicted), the first ecumenical council of the Christian Church, was formally opened by Con
The First Council of Nicaea was a council of Christian bishops convened in the Bithynian city of Nicaea by the Roman Emperor Constantine I, also known as the First Ecumenical Counc…
The First Council of Nicaea, the first ecumenical council of the Christian Church, was formally opened by Constantine th
The Battle of Adrianople was fought in Thrace on July 3, 324, during a Roman civil war, the second to be waged between the two emperors Constantine I and Licinius. Licinius was sou…
Battle of Adrianople: Constantine I defeats Licinius, who flees to Byzantium.
The civil wars of the Tetrarchy were a series of conflicts between the co-emperors of the Roman Empire, starting from 306 AD with the usurpation of Maxentius and the defeat of Seve…
Civil wars of the Tetrarchy: Roman emperor Constantine the Great defeated his former colleague Licinius at the Battle…
Valentinian I, sometimes known as Valentinian the Great, was Roman emperor from 364 to 375. He is the second-last emperor to govern the empire as a whole, albeit only from February…
Valentinian I, Roman emperor (died 375)