Explore 14 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 is formally opened, starting the first ecumenical council of the Christian Church
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 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 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…
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
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…
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)
Constantine I, also known as Constantine the Great, was Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He played a pivotal role in elevati…
Constantine the Great decisively defeats Licinius in the Battle of Chrysopolis, establishing Constantine's sole…
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
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…
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
Emperor Ming of Jin (simplified Chinese: 晋明帝; traditional Chinese: 晉明帝; pinyin: Jìn Míng Dì; Wade–Giles: Chin Ming-ti; 299 – 18 October 325, personal name Sima Shao, courtesy name …
Emperor Ming of Jin (born 299)
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.
Constantine I, also known as Constantine the Great, was Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He played a pivotal role in elevati…
Constantine the Great decisively defeats Licinius in the Battle of Chrysopolis, establishing Constantine's sole…
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…
Constantine I, also known as Constantine the Great, was Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He played a pivotal role in elevati…
Constantine the Great decisively defeated Licinius in the Battle of Chrysopolis, establishing Constantine's sole…
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)
Pappus of Alexandria was a Greek mathematician of late antiquity known for his Synagoge (Συναγωγή) or Collection, and for Pappus's hexagon theorem in projective geometry. Almost no…
Pappus of Alexandria, Greek philosopher, observes an eclipse of the Sun and writes a commentary on The Great…
Pappus of Alexandria was a Greek mathematician of late antiquity known for his Synagoge (Συναγωγή) or Collection, and for Pappus's hexagon theorem in projective geometry. Almost no…
Pappus of Alexandria, one of the last great Greek mathematicians of antiquity, observed an eclipse that allowed…