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What Happened In March 321 In History

Home » History by Year » 321 » March

Historical Events for March, 321

  • 7th » Emperor Constantine I decrees that the 'dies Sol Invictus or Solis Invicti' (Sunday or sun-day) is the day of rest in the Empire.

Year 321 events in history for the month of March

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Historical events for the year 321 by month