This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
An age entry records a specific, named span within a tradition's own scheme of cosmic or world time, a Golden Age, a yuga, a named sun or era, considered for what that tradition says characterizes the age and how the age relates to the ages before and after it, distinct from a historical period in describing a tradition's own cosmology rather than a documented span of political history. Hesiod's Cosmos situates the poet's own five metal ages, gold, silver, bronze, heroic and iron, within the wider Greek project of using a sequence of ages to explain why the present age falls short of an imagined earlier one.
An entry records an age's stated position in its tradition's own sequence, what qualities or conditions that tradition attributes to it, and how the tradition says one age ends and the next begins, a moral decline, a catastrophe, a renewal, since these transition accounts vary considerably between traditions even where the underlying pattern of decline and renewal looks similar.
An age entry treats each tradition's own scheme on its own terms rather than mapping every age onto a single universal timeline, since Hesiod's own five ages and a wholly different tradition's ages are two separate documented cosmologies, not two versions of one shared count.