entity_periods: ENT_ACHERON_RIVER, PER_GRK_ARCHAIC

Period assignments linking entities to the historical periods when they are attested. An entity may span multiple periods. All Greek entities are assigned; Egyptian tradition is fully covered; total coverage exceeds 70%.

This data as json

entity_id	period_id	confidence	rationale	source_id	review_status
ENT_ACHERON_RIVER	PER_GRK_ARCHAIC	high	Underworld river; Homer Odyssey 10.513; Hesiod	SRC_HOMER_ILIAD_ODYSSEY	reviewed