entity_periods: ENT_ALC_SALT, PER_ALCHEMY

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_ALC_SALT	PER_ALCHEMY	high	Philosophical Salt, the fixed corporeal 'body' principle of the Paracelsian tria prima that binds Sulphur and Mercury; an operative category of the practiced art.	SRC_ABRAHAM_ALCH_IMAGERY	reviewed