Anno Inceptum

Used in older chronicles and historical records predating the annexation of Amasynia by Trae Kelsa, Anno Inceptum (loosely, "years since the beginning"), abbreviated as "AI" or "A.I.", defines an epoch based on the unification of the tribes of the Amasyn Valley and coronation of King Archenaud the Bold, an event generally regarded as marking the foundation of what is now known as the Kingdom of Amasynia.

To convert between the Trae Kelsan and Old Amasynian Calendars:

• From A.I. to A.R., subract 1450.
• From A.R. to A.I., add 1450.

It is currently the year 1658 A.I.

There is no year zero - AI 1 is the first year or epoch of the Anno Inceptum era. Incidentally, it corresponds with 351 AD.