An Unflattened Identity and Change Knowledge Graph

Vasco da Gama unspecified sense

person · 4 mentions

Explorer who found the sea route to Calicut in 1498

Connections

The concepts, people, and places this entity is most linked to by claims — node size is mention count, colour is type, dashed nodes are other senses of the same word.

Vasco da GamaCalicut — 2 shared claimsDurban harbor — 1 shared claimTerra Natalis — 1 shared claimCape Route from Europe to the Indian Ocean via the Cape of Good Hope — 1 shared claimeastern coast of Africa — 1 shared claimCalicutDurban harborTerra NatalisCape Route from Eur…eastern coast of Af…
ConceptPlace

Defining properties

Perspectives

Claims grouped by the voice that makes them.

George M. Rolph (author)

  • Vasco da Gama found the way to calicut by sea Calicut 1498
    assertsneutralsource: sugar-pg73616
    Vasco da Gama's exploit in finding the way to Calicut by sea in 1498
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage: 'Vasco da Gama's exploit in finding the way to Calicut by sea in 1498' appears verbatim, with all elements (subject, predicate, object, and date) explicitly supported.
    • qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to 'author' as the passage presents this as historical fact without attribution to a named source. The stance is appropriately 'asserts' as the passage states this directly. The sentiment is neutral, matching the passage's neutral, informational tone. The time qualifiers correctly reflect '1498' as specified in the passage. The context is empty, which is appropriate as the passage provides no specific contextual restriction. The quote is verbatim from the passage and directly supports the claim.
  • Vasco da Gama sighted entrance to Durban harbor Christmas day, 1497 ⟨on voyage to India⟩
    assertsneutralsource: sugar-pg73616
    Vasco da Gama, then on a voyage to India, sighted the entrance to what is now Durban harbor
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage. The text explicitly says 'Vasco da Gama, then on a voyage to India, sighted the entrance to what is now Durban harbor' on Christmas day, 1497, matching all elements of the claim including subject, predicate, object, time, and context.
    • qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author who presents this as historical fact. The stance is 'asserts' which matches the passage's presentational tone. The sentiment is neutral, appropriate for a factual historical statement. The time is precisely specified as 'Christmas day, 1497' with correct ISO date normalization (1497-12-25). The context 'on voyage to India' directly reflects the passage's qualifier. The quote is verbatim and supports all elements of the claim.
  • Vasco da Gama named the country Terra Natalis Christmas day, 1497
    assertsneutralsource: sugar-pg73616
    named the country Terra Natalis
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage: 'Vasco da Gama, then on a voyage to India, sighted the entrance to what is now Durban harbor, and named the country Terra Natalis.' All elements (subject, predicate, object, and date) are explicitly supported by the text.
    • qualifier_fidelity 0.90 pass — The claim is largely faithful to the passage. Viewpoint, stance, sentiment, and time are all accurate. The quote is verbatim. However, the context field is empty when it should specify that this refers to what is now Durban harbor/the region Vasco da Gama sighted, as the passage frames this naming in that specific geographic context. This is a minor issue since the quote itself contains sufficient context, but technically the context qualifier should not be empty given the passage's framing.

author

  • assertspositivesource: spice-trade
    The Cape Route from Europe to the Indian Ocean via the Cape of Good Hope was pioneered by the Portuguese explorer navigator Vasco da Gama in 1498
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage with an exact quote: 'The Cape Route from Europe to the Indian Ocean via the Cape of Good Hope was pioneered by the Portuguese explorer navigator Vasco da Gama in 1498.' All elements (subject, predicate, object, and date) are explicitly supported.
    • qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage itself makes this assertion, not attributing it to a specific named source). The stance is accurately 'asserts' as the passage presents this as a factual statement. The sentiment is appropriately 'positive' given the context of pioneering a new route. The time is correctly specified as 1498 with valid_from matching the passage's date and valid_to as null since no end date is given. The context is empty as appropriate since the passage provides no restrictive context. The quote appears verbatim in the passage and directly supports the claim.
  • Vasco da Gama commanded vessels continuing beyond cape of good hope to eastern coast of africa eastern coast of Africa 1497
    assertsneutralsource: spice-trade
    Just nine years later in 1497, on the orders of Manuel I of Portugal, four vessels under the command of navigator Vasco da Gama continued beyond to the eastern coast of Africa
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly supported by the passage, which explicitly states that in 1497, four vessels under the command of navigator Vasco da Gama continued beyond the Cape of Good Hope to the eastern coast of Africa. The subject, predicate, object, and temporal details all match the passage without requiring outside knowledge or over-generalization.
    • qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (not a named source). The stance 'asserts' matches the passage's declarative framing. Sentiment is neutral, appropriate for a factual historical statement. The time qualifier (1497) is precisely stated in the passage. The context is empty, which is appropriate as the passage does not restrict the claim to a particular sense or role. The quote is verbatim from the passage and directly supports the claim about Vasco da Gama commanding vessels beyond the Cape of Good Hope in 1497.
  • Vasco da Gama sailed across indian ocean to calicut Calicut 1497
    assertsneutralsource: spice-trade
    sailed across the Indian Ocean to Calicut, on the Malabar Coast in Kerala in South India
    judge verdicts (2)
    • groundedness 1.00 pass — The claim is directly stated in the passage: 'on the orders of Manuel I of Portugal, four vessels under the command of navigator Vasco da Gama continued beyond to the eastern coast of Africa to Malindi and sailed across the Indian Ocean to Calicut, on the Malabar Coast in Kerala in South India' in 1497. The claim accurately reflects the passage without requiring outside knowledge.
    • qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (not a named source). The stance 'asserts' matches the passage's straightforward presentation. The sentiment is neutral as appropriate. The time '1497' matches the passage exactly. The context is appropriately empty as the passage does not restrict this to a particular sense or role. The quote appears verbatim in the passage and directly supports the claim.

Change over time

1497
  • commanded vessels continuing beyond cape of good hope to eastern coast of africa eastern coast of Africa
  • sailed across indian ocean to calicut Calicut
Christmas day, 1497
  • sighted entrance to Durban harbor
  • named the country Terra Natalis
1498
  • found the way to calicut by sea Calicut
in 1498
  • pioneered Cape Route from Europe to the Indian Ocean via the Cape of Good Hope