Constantine Declares Sunday: Rome Rests on Christian Law
Emperor Constantine I officially designated the dies Solis Invicti as the empire's day of rest, embedding a pagan festival into Roman law. This decree established Sunday as the standard weekly holiday across the Christianized West, shaping the rhythm of work and worship for centuries to come.
March 7, 321
1705 years ago
Key Figures & Places
What Else Happened on March 7
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The bishop gave philosophy professors just three weeks to recant—or lose their jobs and face excommunication. Stephen Tempier's 1277 condemnation targeted 219 t…
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