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 | |
| 255 | year 39 of Ptolemaeus II | ruler | days | calendar year | 24 October 247 BC | 6 March 246 BC | List all texts (strict / not strict / exact) ? | |
| 255 | year 1 of Ptolemaeus III | ruler | days | calendar year | 28 January 246 BC | 23 October 246 BC | List all texts (strict / not strict / exact) ? |