List of regnal years of rulers of Egypt according to your selection
» Currently 2 entries:
| Period ID | Regnal year | Level up | Level down | Calendar year | From | To | Texts assigned to this period | |
| 280 | year 26 of Ptolemaeus III | ruler | days | calendar year | 18 October 222 BC | 14 February 221 BC | List all texts (strict / not strict / exact) ? | |
| 280 | year 1 of Ptolemaeus IV | ruler | days | calendar year | 2 November 222 BC | 16 October 221 BC | List all texts (strict / not strict / exact) ? |