Calendarby GlyphHistory · Anniversaries
1700th anniversary: Emperor Constantine I decreed that Sunday, the day honoring the sun god Sol...
Sun, March 7, 2021
6 yr ago
In 321, Emperor Constantine I decreed that Sunday, the day honoring the sun god Sol Invictus (disc pictured), would be the Roman day of rest.
Source, method and history
- Source
- Wikipedia
- How we know
- Wikipedia "On this day" selected anniversary, 1700 years (321 to 2021).
- Recurs
- annual
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- Changes
- 2026-09-25: added to 2021-03-07