Observance-Sundays
Constantine orders judges, urban populations, and many trades to rest on the venerable day of the Sun, establishing an empire-wide Sunday rest law.
Permanent historical records · Updated 2026-11-03
321 in Roman Empire
Explore 2 historical events and records for Roman Empire in 321.
Historical records for Roman Empire in 321
Sorted by month and day. Records with no month are shown last. Showing 2 of 2 unique records.
2Unique records
1 of 1Page
2Named events on this page
2Named people on this page
0Places on this page
March
Other events (month unknown)
Second Consulship
Constantine II serves a second consulship, sharing the office with his half-brother Crispus.
How these records were prepared
Generated from the World History Database historical_events table. Identical display records are collapsed; descriptions otherwise retain the stored text. Coverage and source quality vary. Check primary and specialist sources before citing individual historical claims.