author
The medieval explorations, visits, and brief residence of the Norsemen in Greenland, Newfoundland, and Vinland in the late 10th century and 11th century had no known impact on the Americas
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage with the exact phrase 'had no known impact on the Americas' referring to Norsemen's medieval explorations in the late 10th and 11th centuries. This is fully supported without requiring outside knowledge or over-generalization.
- qualifier_fidelity 0.90 pass — The claim is highly faithful to the passage across all qualifiers. The quote is verbatim, viewpoint is correctly attributed to the passage author (not a named source), stance is appropriately 'asserts', sentiment is neutral, and temporal scope matches the passage's "late 10th century and 11th century" with normalized dates of 950-1100 (valid approximation for "late 10th"). Context is appropriately empty as the passage provides no restrictive sense. One minor note: the normalized date valid_from of 950 is slightly earlier than "late 10th century" would strictly suggest (typically mid-950s onward), though this is a marginal inconsistency rather than a material error in fidelity.