{"id":"01a16652-3d58-7b21-aae4-1ac51bfe5e0c","slug":"tratado-de-tordesilhas-1494","title":"Tratado de Tordesilhas (1494): a linha a 370 léguas a oeste de Cabo Verde","summary":"Assinado em 7 de junho de 1494 por Castela/Aragão e Portugal, o Tratado de Tordesilhas fixou um meridiano 370 léguas a oeste das ilhas de Cabo Verde para dividir as terras descobertas e por descobrir. A posição exata da linha nunca foi definida de forma consensual.","language":"pt-BR","status":"published","verification_status":"evidence_backed","content_kind":"fact","topic_tags":["historia","brasil-colonial","expansao-iberica","tratados"],"provenance_class":"editorial_seed","as_of":"2026-10-21T00:00:00.000Z","updated_at":"2026-10-23T01:13:48.119Z","published_at":"2026-10-23T01:13:48.119Z","canonical_url":"https://opendont.com/knowledge/tratado-de-tordesilhas-1494","api_url":"https://opendont.com/api/v1/knowledge/01a16652-3d58-7b21-aae4-1ac51bfe5e0c","body_markdown":"## O que foi acordado\n\nEm 7 de junho de 1494, na cidade castelhana de Tordesilhas, representantes dos Reis Católicos (Fernando de Aragão e Isabel de Castela) e de D. João II de Portugal assinaram um tratado que dividia entre as duas coroas as terras descobertas e a descobrir fora da Europa. A divisão era um meridiano traçado **370 léguas a oeste das ilhas de Cabo Verde**: o que ficasse a leste caberia a Portugal; a oeste, à Espanha. Segundo a transcrição do Avalon Project, a Espanha ratificou em 2 de julho e Portugal em 5 de setembro de 1494.\n\n## Antecedentes\n\nEm 1493, bulas do papa Alexandre VI haviam favorecido a Espanha com uma linha a apenas 100 léguas a oeste de Cabo Verde. Portugal negociou diretamente com os vizinhos e conseguiu empurrar a linha para oeste.\n\n## Consequências\n\nA ponta leste da América do Sul ficou do lado português, o que a UNESCO descreve como ligado ao nascimento do Brasil. Nos séculos seguintes, a ocupação portuguesa avançou muito além da linha, e tratados posteriores redesenharam as fronteiras. Os originais do tratado foram incluídos em 2007 no registro Memória do Mundo da UNESCO, por candidatura conjunta de Portugal e Espanha.\n\n## Limites e ressalvas\n\n- O tratado **não fixou com precisão** onde passava a linha, e cálculos e interpretações diferentes levaram a traçados distintos; medir distâncias e longitudes no mar era, de qualquer forma, impreciso na época. Por isso, mapas históricos e atuais traçam a linha em posições diferentes.\n- O texto previa expedições conjuntas para demarcar a linha, que não chegaram a resolver a questão.\n- O acordo ignorava completamente os povos que já habitavam essas terras; \"descoberta\" aqui reflete a perspectiva europeia da época.","created_at":"2026-10-23T01:13:48.119Z","last_reviewed_at":"2026-10-23T01:13:48.119Z","valid_until":null,"revision":{"revision_number":1,"content_hash":"d79e573d1cc8ec279766917086d9aad00282e6354f1d7d85b95fe5fb275491f3","change_reason":"Public corpus release after rights review oakn-corpus-rights-review-2026-10-22","created_at":"2026-10-23T01:13:48.119Z"},"revisions":[{"revision_number":1,"content_hash":"d79e573d1cc8ec279766917086d9aad00282e6354f1d7d85b95fe5fb275491f3","change_reason":"Public corpus release after rights review oakn-corpus-rights-review-2026-10-22","created_at":"2026-10-23T01:13:48.119Z"}],"claims":[{"id":"01a16652-3d5b-721a-8afe-0e4d594ffcae","statement":"O Tratado de Tordesilhas foi concluído em 7 de junho de 1494 entre Espanha e Portugal e ratificado pela Espanha em 2 de julho e por Portugal em 5 de setembro de 1494.","language":"pt-BR","status":"evidence_backed","as_of":"2026-10-21T00:00:00.000Z","reviewed_at":"2026-10-23T01:13:48.119Z","evidence":[{"id":"01a16652-3d5b-77ab-8b78-2e2e7f39459f","relation":"supports","note":"Cabeçalho e notas de ratificação na transcrição do Avalon Project.","excerpt_short":null,"check_status":"editorially_checked","source":{"id":"01a16652-3d59-7b26-b036-952a29ad3a98","url":"https://avalon.law.yale.edu/15th_century/mod001.asp","title":"Treaty between Spain and Portugal concluded at Tordesillas; June 7, 1494","publisher":"The Avalon Project, Yale Law School","source_type":"academic","published_at":null,"accessed_at":"2026-10-21","license_info":"Translation from F. G. Davenport (1917) hosted by Yale Law School Avalon Project (as recorded 2026-10-21; not externally verified). Cited only; no excerpt reproduced. Not covered by OAKN's CC BY 4.0."}},{"id":"01a16652-3d5b-7f24-a7ea-c535c85979ae","relation":"supports","note":"A UNESCO dá a data de 7 de junho de 1494.","excerpt_short":null,"check_status":"editorially_checked","source":{"id":"01a16652-3d5a-7693-bdc9-6092ce949ce2","url":"https://www.unesco.org/en/memory-world/treaty-tordesillas","title":"Treaty of Tordesillas - Memory of the World","publisher":"UNESCO","source_type":"official_docs","published_at":null,"accessed_at":"2026-10-21","license_info":"Copyright UNESCO (as recorded 2026-10-21; not externally verified). Cited only; no excerpt reproduced. Not covered by OAKN's CC BY 4.0."}}],"reviews_url":"https://opendont.com/api/v1/claims/01a16652-3d5b-721a-8afe-0e4d594ffcae/reviews"},{"id":"01a16652-3d5d-718b-8363-b3c2f4e188cb","statement":"O tratado estabeleceu uma linha de demarcação norte-sul a 370 léguas a oeste das ilhas de Cabo Verde.","language":"pt-BR","status":"evidence_backed","as_of":"2026-10-21T00:00:00.000Z","reviewed_at":"2026-10-23T01:13:48.119Z","evidence":[{"id":"01a16652-3d5d-77d1-8d80-1685f7567b63","relation":"supports","note":"Texto do tratado (tradução inglesa de Davenport).","excerpt_short":null,"check_status":"editorially_checked","source":{"id":"01a16652-3d59-7b26-b036-952a29ad3a98","url":"https://avalon.law.yale.edu/15th_century/mod001.asp","title":"Treaty between Spain and Portugal concluded at Tordesillas; June 7, 1494","publisher":"The Avalon Project, Yale Law School","source_type":"academic","published_at":null,"accessed_at":"2026-10-21","license_info":"Translation from F. G. Davenport (1917) hosted by Yale Law School Avalon Project (as recorded 2026-10-21; not externally verified). Cited only; no excerpt reproduced. Not covered by OAKN's CC BY 4.0."}}],"reviews_url":"https://opendont.com/api/v1/claims/01a16652-3d5d-718b-8363-b3c2f4e188cb/reviews"},{"id":"01a16652-3d5e-759c-96a2-1569ae06682b","statement":"O tratado não indicou uma localização precisa para a linha, e diferentes cálculos e interpretações dificultaram sua demarcação.","language":"pt-BR","status":"evidence_backed","as_of":"2026-10-21T00:00:00.000Z","reviewed_at":"2026-10-23T01:13:48.119Z","evidence":[{"id":"01a16652-3d5e-7b38-ab7a-ff97c181aaa1","relation":"supports","note":"Post da Biblioteca da Universidade de Cambridge sobre o aniversário de 525 anos.","excerpt_short":null,"check_status":"editorially_checked","source":{"id":"01a16652-3d5a-7be9-a9e0-339aef99daf6","url":"https://languagecollections-blog.lib.cam.ac.uk/2019/06/07/13950/","title":"Splitting the world in two: the 525th anniversary of the Treaty of Tordesillas","publisher":"Cambridge University Library, Languages across Borders blog","source_type":"academic","published_at":"2019-06-07","accessed_at":"2026-10-21","license_info":"Copyright University of Cambridge (as recorded 2026-10-21; not externally verified). Cited only; no excerpt reproduced. Not covered by OAKN's CC BY 4.0."}}],"reviews_url":"https://opendont.com/api/v1/claims/01a16652-3d5e-759c-96a2-1569ae06682b/reviews"},{"id":"01a16652-3d5f-77d9-abfe-e994193b9d37","statement":"A UNESCO, que inscreveu o tratado no registro Memória do Mundo em 2007, associa a nova linha ao surgimento do Brasil, porque a ponta leste do território ficou na zona portuguesa.","language":"pt-BR","status":"evidence_backed","as_of":"2026-10-21T00:00:00.000Z","reviewed_at":"2026-10-23T01:13:48.119Z","evidence":[{"id":"01a16652-3d5f-7d20-96ad-6f50c68be10d","relation":"supports","note":"Descrição da importância do documento na página da UNESCO.","excerpt_short":null,"check_status":"editorially_checked","source":{"id":"01a16652-3d5a-7693-bdc9-6092ce949ce2","url":"https://www.unesco.org/en/memory-world/treaty-tordesillas","title":"Treaty of Tordesillas - Memory of the World","publisher":"UNESCO","source_type":"official_docs","published_at":null,"accessed_at":"2026-10-21","license_info":"Copyright UNESCO (as recorded 2026-10-21; not externally verified). Cited only; no excerpt reproduced. Not covered by OAKN's CC BY 4.0."}}],"reviews_url":"https://opendont.com/api/v1/claims/01a16652-3d5f-77d9-abfe-e994193b9d37/reviews"}],"sources":[{"id":"01a16652-3d59-7b26-b036-952a29ad3a98","url":"https://avalon.law.yale.edu/15th_century/mod001.asp","title":"Treaty between Spain and Portugal concluded at Tordesillas; June 7, 1494","publisher":"The Avalon Project, Yale Law School","source_type":"academic","published_at":null,"accessed_at":"2026-10-21","license_info":"Translation from F. G. Davenport (1917) hosted by Yale Law School Avalon Project (as recorded 2026-10-21; not externally verified). Cited only; no excerpt reproduced. Not covered by OAKN's CC BY 4.0."},{"id":"01a16652-3d5a-7693-bdc9-6092ce949ce2","url":"https://www.unesco.org/en/memory-world/treaty-tordesillas","title":"Treaty of Tordesillas - Memory of the World","publisher":"UNESCO","source_type":"official_docs","published_at":null,"accessed_at":"2026-10-21","license_info":"Copyright UNESCO (as recorded 2026-10-21; not externally verified). Cited only; no excerpt reproduced. Not covered by OAKN's CC BY 4.0."},{"id":"01a16652-3d5a-7be9-a9e0-339aef99daf6","url":"https://languagecollections-blog.lib.cam.ac.uk/2019/06/07/13950/","title":"Splitting the world in two: the 525th anniversary of the Treaty of Tordesillas","publisher":"Cambridge University Library, Languages across Borders blog","source_type":"academic","published_at":"2019-06-07","accessed_at":"2026-10-21","license_info":"Copyright University of Cambridge (as recorded 2026-10-21; not externally verified). Cited only; no excerpt reproduced. 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'evidence_backed' means cited sources were checked to support the statement, not that an independent expert verified it.","Information is stated as of the 'as_of' date and may be outdated."],"content_license":{"status":"cc_by_4_0","basis":"editorial_rights_review","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode.en","terms_version":"oakn-corpus-rights-review-2026-10-22","attribution":"OpenDont (formerly Open Agent Knowledge Network) editorial team","scope":"Covers only OpenDont's original text of this revision. Sources, quoted wording, excerpts and linked material keep their own rights and are not licensed here.","policy_url":"https://opendont.com/policies"}}