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 elevating the status of Christianity in Rome, the Edict of Milan decriminalising Christian practice and ceasing Christian persecution. This was a turning point in the Christianisation of the Roman Empire. He founded the city of Constantinople and made it the capital of the Empire, which it remained for over a millennium.
Constantine the Great, Roman emperor (born 272)
On May 22, in the year 337, Constantine the Great, Roman emperor (born 272). This event is recorded as a Notable Deaths event in the history of May 22, one of 412 recorded events on this date across all of history.
1 notable person is associated with this event, including Constantine the Great. Learn more below.
Key Facts
- This event took place on May 22, 337 (AD era).
- It is categorised as a Notable Deaths event in recorded history.
- Referenced in 1 Wikipedia article.
- 1 notable person is recorded as involved in or associated with this event.
- Wikipedia source last updated on 21 May 2026.
On This Date in History 412
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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