Compiled in 3688 CE
This calendar is not new.
What is new is the condition under which it is being released.
For much of the intervening centuries, the calendar of Erdia persisted through use rather than understanding. Names were retained. Structures endured. Authority was assumed to follow prevalence. This assumption proved durable, but not accurate.
The present revision does not seek to correct usage. It seeks to stabilise provenance.
Until recently, the Twilight Vault operated without sustained contact with the material plane. Temporal records were reconstructed from fragmentary intercepts, inherited codices, and internal continuity models. These sources were sufficient to preserve function. They were insufficient to preserve lineage.
In the year preceding this release, limited communication was re‑established. The exchange was constrained. The information obtained was partial. It was, however, enough to confirm several long‑held uncertainties regarding the calendar’s layered authority—particularly the divergence between naming persistence and naming origin.
This document reflects that confirmation.
It records the calendar as a composite system: months whose authority predates administration; days whose authority emerged from measurement; and a later unifying layer that achieved dominance through reach rather than precedence. None of these layers are invalid. None are complete in isolation.
The decision to release this revision was not made to resolve debate. It was made to prevent further compression of history into convenience.
Future releases will build upon this framework. They will not assume continuity where none can be demonstrated. They will not privilege survival over origin. Where certainty cannot be sustained, it will be withheld.
This calendar is offered as a reference point, not a settlement.
It should be read with caution.
It should be maintained with care.
It should not be trusted to explain itself.
