Histories
• History, in On-Line Reference Book for Medieval Studies
• Biography of Constantine as written in the Catholic Encyclopedia
• Information on Constantine written by Paul Halsall.
• "The Conversion to Christianity of the Roman Emperor Constantine" by Sergio Caggia and Paul Gwynne
• "The Emperor Constantine and Jerusalem"
• Saints Constantine and Helena
• The Founding of Constantinople
• Art and Architecture
  • The Art and Architecture of Constantine
  • The Arch of Constantine (computer generated)
  • Photograph of the Arch of Constantine
  • The Basilica of Constantine
  • Brief history of the Arch of Constantine
• Paintings
  • Constantine's vision
  • The Baptism of Constantine
  • The Battle at the Milvian Bridge
  • "Sala di Constantino"
• Masonic Rings with inscription of "In Hoc Signo Vinces"
• The Cross of the Chaplain Services of the Canadian Armed Forces
• Constantine Coins: 1, 2
• Gamma Rho Chapter celebrates the Birthday of Constantine