Roman calendar reform instituted
Year only · Calendar as reported in the source (not converted) · Date as reported
Julius Caesar reformed the Roman calendar, establishing the basis of the Julian calendar.
- Type
- calendar history
- Category
- calendar history
- Organization
- Roman Republic
- Participants
- Roman Republic
Sources and attribution
- NASA Goddard — Historical astronomy timeline (opens in a new tab) — Factual summary; source attribution retained.