NotesTertiary reference used for uncontroversial biographical facts, each confirmed against a live, dedicated Britannica biography or topic page rather than assumed from general reputation, one page per figure, recorded in this source's own citation locators. Originally recorded 2026-08-06 with a narrow scope of gender only, on nineteen historical figures and characters, which was true of its use at that moment. That scope was outrun within two days: by 2026-08-08 the atlas held citations to this source spanning gender, historicity, place of origin, birth year, death year, place of activity, manner of death and personal aliases, across fifty five entities carrying an individual property fact and fifty four entities carrying an individually verified page locator, sixty three entities in total once relationship citations and open questions citing this source are counted. Every citing entity still rests on its own dedicated, individually checked page; what grew is how many kinds of fact are drawn from that page, not the verification standard behind any one of them. Distinct from the atlas's separate general Britannica reference, corrected 2026-08-06 to record its own genuine scope, a general reference encyclopedia usable broadly for ordinary encyclopedia depth claims; this source stays reserved for a fact individually checked against a live, named page and is not folded into that broader lineage. Do not cite this source for a figure with no individually verified page of its own.