| Calendar | Date | Days | Comment | Recurring | |
|---|---|---|---|---|---|
| The Formationist Calendar | 30 Longdark, 2647 | 1 day | The city states of Nemethil and Rhunelin sign treaties and claim land across the east of Tide, forming Pauviel | ||
| The Formationist Calendar | 1 Thaw, 2654 | 1 day | The city states of Cassari and Galath Serin join Pauviel, expanding the country out west | ||