Person

Constantine I

Also known as Constantine the Great, Emperor Constantine I

Constantine I, known as Constantine the Great, was Roman emperor in the early fourth century CE. He was the first emperor to convert to Christianity and legalised the faith throughout the Roman Empire. He refounded Byzantion as Constantinople, which became the capital of the Byzantine Empire.

Constantine I
Image: Merulana · CC BY-SA 4.0 · Wikimedia Commons

Mentioned in 10 profiles

Byzantine EmpireFoundationRoman EmpireImpactDelphiImpactByzantiumImpact, DeclineSarmatiansDeclineRoman BritainImpact, SummaryAlemanniImpactFranksMilitaryKingdom of GreeceGovernance, SummaryShirvanshah StateMilitary

Mentioned in 2 state histories

Provisional Government of National DefenceSecond Hellenic Republic

See also

Cite this entry
APA
The Epoch Institute. (2026). Constantine I. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/constantine-i
MLA
“Constantine I.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/constantine-i. Accessed .
Chicago
The Epoch Institute. “Constantine I.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/constantine-i.
Harvard
The Epoch Institute (2026) ‘Constantine I’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/constantine-i (Accessed: ).

Last reviewed October 2026Random entry ↻