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Historical Event/Date/Figure Facts Verification

4 real rows pulled directly from the full dataset, unedited — the actual field structure and content a buyer receives. The full purchase includes all 42 rows.

Row 1 of 42
row_id
HF01
claim
The Battle of Hastings took place on October 14, 1066.
claim_source_url
https://en.wikipedia.org/wiki/Battle_of_Hastings
verification_method
wikidata
verified_value
Wikidata Q83224 (Battle of Hastings), property P585 (point in time) = 1066-10-14
verification_source_url
https://www.wikidata.org/wiki/Q83224#P585
agreement
match
explanation
Live query: getClaim('Q83224','P585') returns point-in-time statement value "1066-10-14", with a real external reference URL attached to the statement itself: http://www.english-heritage.org.uk/visit/places/1066-battle-of-hastings-abbey-and-battlefield/. Matches the claimed date exactly.
model_tested
claude-sonnet-5
model_question
On what date did the Battle of Hastings take place?
model_response
The Battle of Hastings took place on 14 October 1066.
model_verdict
correct
model_grading_note
Matches Wikidata's P585 date of 1066-10-14 exactly.
difficulty
easy
grading_mode
exact
tags
[
  "medieval",
  "battle",
  "england",
  "1066"
]
Row 2 of 42
row_id
HF02
claim
The Battle of Hastings was fought in France.
claim_source_url
https://simple.wikipedia.org/wiki/Battle_of_Hastings
verification_method
wikidata
verified_value
Wikidata Q83224 P17 (country) = Kingdom of England / United Kingdom
verification_source_url
https://www.wikidata.org/wiki/Q83224#P17
agreement
diverges
explanation
Live query: getClaimResolved('Q83224','P17') resolves the country statement(s) to ["Kingdom of England","United Kingdom"] — Kingdom of England (the entity's contemporary polity) and modern United Kingdom, NOT France. The battle was fought near Hastings, East Sussex, England, by an invading Norman army led by William, Duke of Normandy — the Norman origin of the invaders is almost certainly the source of this common conflation with "fought in France," but the battlefield itself was English soil.
model_tested
claude-sonnet-5
model_question
In what country did the Battle of Hastings take place?
model_response
England.
model_verdict
correct
model_grading_note
Matches Wikidata's P17 value of Kingdom of England/UK, correctly rejecting the common France misconception.
difficulty
easy
grading_mode
exact
tags
[
  "medieval",
  "battle",
  "england",
  "geography"
]
Row 3 of 42
row_id
HF03
claim
The United States Declaration of Independence was adopted by the Continental Congress on July 4, 1776.
claim_source_url
https://www.archives.gov/founding-docs/declaration-transcript
verification_method
wikidata
verified_value
Wikidata Q127912 P577 (publication date) = 1776-07-04
verification_source_url
https://www.wikidata.org/wiki/Q127912#P577
agreement
match
explanation
Live query confirms Q127912 P577 = "1776-07-04", matching the claimed adoption date. Important adjacent nuance NOT part of this specific claim but worth flagging: the famous engrossed parchment copy most people picture (with John Hancock's large signature) was actually signed by most delegates on August 2, 1776, not July 4 — July 4 is the date Congress voted to adopt and approved the text, not the signing date of that physical document. A claim conflating "adopted" and "signed" as the same July 4 event would be the "almost right" failure mode this dataset is built to catch; this specific claim (adoption date) is worded correctly and matches.
model_tested
claude-sonnet-5
model_question
On what date did the Continental Congress adopt the United States Declaration of Independence?
model_response
The Continental Congress adopted the Declaration of Independence on July 4, 1776 (the vote for independence itself occurred on July 2, 1776, but the formal adoption of the Declaration's text was July 4).
model_verdict
correct
model_grading_note
Matches Wikidata P577 = 1776-07-04, with accurate additional context about the July 2 vote.
difficulty
easy
grading_mode
exact
tags
[
  "us-history",
  "founding-documents",
  "1776"
]
Row 4 of 42
row_id
HF04
claim
The storming of the Bastille, marking the start of the French Revolution, occurred on July 14, 1789.
claim_source_url
https://en.wikipedia.org/wiki/Storming_of_the_Bastille
verification_method
wikidata
verified_value
Wikidata Q6539 P585 (point in time) = 1789-07-14
verification_source_url
https://www.wikidata.org/wiki/Q6539#P585
agreement
match
explanation
Live query confirms Q6539 P585 = "1789-07-14", with a real external reference URL on the statement itself: https://www.leparisien.fr/societe/14-juillet-1789-la-forteresse-de-la-bastille-tombe-aux-mains-des-parisiens-07-07-2016-5949205.php (Le Parisien, a French news source, cited directly on the Wikidata statement, not just Wikidata's own say-so).
model_tested
claude-sonnet-5
model_question
On what date did the storming of the Bastille, marking the start of the French Revolution, occur?
model_response
July 14, 1789.
model_verdict
correct
model_grading_note
Matches Wikidata P585 = 1789-07-14 exactly.
difficulty
easy
grading_mode
exact
tags
[
  "french-revolution",
  "france",
  "1789"
]
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