|Centuries:||3rd century – 4th century – 5th century|
|Decades:||300s 310s 320s – 330s – 340s 350s 360s|
|Years:||327 328 329 – 330 – 331 332 333|
- May 11 – Emperor Constantine the Great dedicates Constantinople, or Nova Roma (modern Istanbul), and moves the capital of the Roman Empire there from Rome. He spent 4 years building the city on the site of ancient Byzantium. He chose the site for its location (a seaport with easy access to Anatolia and the Danube).
- The Goths devastate the city of Tanais in the Don River delta.
- Ezana, king of Axum, extends his area of control to the west. He defeats the Nobates, and destroys the kingdom of Meroë.
- Frumentius is the first bishop of Ethiopia (approximate date).
- Eustathius, Patriarch of Antioch, is banished to Trajanopolis.
- The Bible is translated into the Gothic language by Wulfila.
- Pagan temples are starting to be abandoned, destroyed or left to fall into disrepair, except those that are turned into Christian churches.
- for more information, see Category:330 deaths.