Tião Viana
Brazilian politician

Sebastião Afonso Viana Macedo Neves, better known as Tião Viana, is a Brazilian medical doctor, professor, and politician. He was formerly Governor of Acre and is a member of the Workers' Party. He served as interim President of the Senate in 2007. He is a professor at the Federal University of Acre.
“Tião Viana” enters the record as brazilian politician. Crown Archives preserves that source wording while asking what Tião, Viana and Brazilian can confirm, complicate or overturn.
Why this record matters
“Tião Viana” is worth following because a concise public description often conceals a longer documentary argument. Here, Tião, Viana and Brazilian provides the most credible route into that argument.
Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Sep 7, 2026. The linked authority identifier is Q212394. VIAF identifies the subject as 28949223. The Library of Congress control number is n2005178008. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2007.
Later biographies can compress uncertainty and repeat inherited reputations, so apparently settled claims may still require comparison. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.
- Establishing names and roles
- Building a first chronology
- Locating cited institutions
Personal papers, civil or court records, institutional files and the scholarship cited by the source.
Three-step research path
- Establish the record: confirm the title “Tião Viana”, its source revision and the description used here.
- Expand the search: follow Tião Viana primary sources, Tião Viana archive and Tião research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Tião Viana”?
- Which primary records establish identity, chronology and institutional ties?
- Which claims depend on a single source or contested interpretation?
Search terms from this dossier
This entry incorporates text from “Tião Viana” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.