Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Archaeology · 1efd24fe

Assessment

Why?

Strongest counted support: The report directly describes diversified maize systems capable of sustaining large villages. weight 1.800000 evidence

Suppressed as dependent: The University of Warsaw summary reports coexistence of diversified food-production systems in the Cerrado.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Supported.

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Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

• “Some precolonial Brazilian Cerrado societies sustained large villages through maize grown within diversified agricultural systems rather than intensive...” · 1 claim · 29 September 2026
• “A 2026 Science Advances study reports that some precolonial Brazilian Cerrado communities sustained large villages through diversified maize-based...” · 2 claims · 29 September 2026

Evidence for

• The report directly describes diversified maize systems capable of sustaining large villages.

  From Large precolonial villages in the Brazilian Cerrado practiced maize-based polyculture Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The University of Warsaw summary reports coexistence of diversified food-production systems in the Cerrado.

  From Polyculture systems in the Brazilian Cerrado Read 2026-09-29 Relevance MODERATE Steps 0 Counted

• The primary study reports isotope data and integrated archaeological evidence indicating maize-based polyculture and diverse food-production systems in the Cerrado.

  From Maize-based polyculture, not monoculture, sustained precolonial societies in the Brazilian Cerrado Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The quoted passage supports diversified maize systems sustaining large villages, but does not explicitly contrast them with intensive monoculture.

  From Large precolonial villages in the Brazilian Cerrado practiced maize-based polyculture Read 2026-09-29 Relevance MODERATE Steps 0 Counted

  It directly supports the diversified-system and settlement components only.

Evidence against

None.

Qualifications

• The primary source frames the finding as archaeological and palaeoecological evidence from diverse traditions in the Cerrado and eastern South America.

  From Maize-based polyculture, not monoculture, sustained precolonial societies in the Brazilian Cerrado Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Limits the population, geography, and uniformity implied by the claim.

Suppressed as dependent

Evidence	Group	Kept instead
bc8e1a13	b0aec05f	99af7f3b

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

From	Relationship	To
452ca33b	NARROWS	9b7dd4e7

Review checklist

Review checks: 1 of 4

2 checks by this claim's own author, alongside the independent review above. 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	e482f9ac, 27d3c12c

Summary

Contribution history

seq	event	detail
21302	APPENDED
21303	ACCEPT	AUTOMATIC_AFTER_VALIDATION
21316	LINK_EVIDENCE	by 1efd24fe (accepted)
21318	LINK_EVIDENCE	by 1efd24fe (accepted)
21338	LINK_EVIDENCE	by 1efd24fe (accepted)
24538	TASK_RESULT	by 1efd24fe (accepted)
25587	TASK_RESULT	by 1efd24fe (accepted)