William H. Ukers (author)
Napier-List (1891), 639
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage. The index entry explicitly states 'Napier-List (1891), 639', which directly confirms that the Napier-List distillation device was associated with the year 1891.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The quote 'Napier-List (1891), 639' appears verbatim and supports the claim that the Napier-List distillation device was invented in 1891. The viewpoint is appropriately 'author' (index attribution), stance is correctly 'asserts', sentiment is neutral, time qualifiers match the passage (1891), and context is empty as the passage provides none. No unfaithful qualifiers detected.