Centuries: 3rd century - 4th century - 5th century Decades: 270s - 280s - 290s - 300s - 310s - 320s - 330s - 340s - 350s - 360s - 370s
Years: 320Events Chandragupta I founds the Gupta dynasty in northern India. The Huns appear in Persia. December 25 introduced as Jesus Christ's birthday. Celje is incorporated with Aquileia as a city. Births Constans (Flavius Julius Constans) Roman emperor from 337 321Events Publication of the first blue law by Constantine I of the Roman Empire: trade is forbidden on Sundays; agriculture is allowed The Roman Catholic church is allowed to hold property Births Deaths 321. 322322 is also a magic number for Skull and bones secret society. 322. 323Events July 3 Battle of Adrianople: Constantine defeats Licinius, forcing Licinius to retreat to Byzantium. September 18 Battle of Chrysopolis: Crispus, defeats Licinius' naval fleet, allowing his father Constantine the ability to cross over the Bosporus 324Events Constantine becomes the sole emperor of the Roman Empire. End of the Tetrarchy as the Roman mode of government. St Peter's Church, Rome, founded. Eustathius becomes bishop of Antioch Births Deaths December 20 Philogonus, Patriarch of Antioch Licini 325Events May 20 First Council of Nicaea first "Ecumenical Council" of the Christian Church: The Nicene Creed is formulated, the date of Easter is discussed. Gladiatorial combat is outlawed in the Roman Empire. The Church of the Nativity is built in Bethlehe 326Events September 14 Discovery of the (alleged) True Cross by Helena, mother of Constantine the Great. traditional date) First church built on the site of Vatican City, where St. Peter's tomb was supposed to be. Births Deaths Crispus, son of Constantine th 327Events September 1 start of first indiction cycle Christianity was adopted as a state religion of Georgia. Births Deaths 327. 328 329
Events:
320s
