Universal Timeline

The Universal Timeline is a taxonomic system for categorizing events in Ha'ther based on chronology. In general, the Universal Timeline uses a series of taxonomic ranks, scaling from most inclusive (longest, in terms of time) to least inclusive (shortest): eon, epoch, age and era. A few informal additions to this list lie on the extremes: supereons (a grouping of eons) and periods (sub-eras).

In total, seven official eons exist:
 * Proterohistoric Eon
 * Deep Time
 * Ancient Archaic Eon
 * Middle Archaic Eon
 * Late Archaic Eon
 * Ancient Historic Eon
 * Modern Historic Eon

Proterohistoric Eon
Main article: Proterohistoric Eon

The Proterohistoric Eon is so named due to its relative uniqueness compared to the rest of time. Though it represents the vast majority of Ha'ther's timeline, the Proterohistoric Eon is often considered a preparation phase for the later coming of life.

Precaustic Epoch
Main article: Precaustic Epoch

Encompassing the earliest formative years of Ha'ther, the Precaustic Epoch begins with the Calamity. The Precaustic Epoch is typically defined as the only epoch in which the Elder Gods were the sole influential life forms across Ha'ther.

Anarchaean Age
Main article: Anarchaean Age

Chaogenic Era
Main article: Chaogenic Era

Caustic Epoch
Main Article: Caustic Epoch

The Caustic Epoch saw the reign of the proto-elemental Titans across the majority of the existing planes.

Deep Time
Main article: Deep Time

Following the chaotic Proterohistoric Eon, the Elder Gods (namely Ysenna) decided a new order to the universe must be established. The proto-elements and constructs of their making were destroyed or banished, quickly being replaced by the (distinctly less-caustic) quintessential elements.

Primeval Epoch
Main article: Primeval Epoch

The Primeval Epoch is defined mostly by the re-creation of Ha'ther by the Elder Gods. This epoch begins with the weaving of Time and ends with the first major advances in primordial life.

Archaean Age
Main article: Archaean Age

Astral Age
Main article: Astral Age

The Astral Age draws its name from the Astrae, element-distributing 4-spheres which were created throughout this age.