{"id":"TBU-ANSWER-00000004","questionId":"TQ-004","questionSlug":"when-founded","entityTuid":"TB-1GEQK0R8","entitySlug":"molson-brewery","entityType":"brewery","entityTallyId":"TBU-BREWERY-0000001","question":"When was this brewery founded?","canonicalAnswer":"1786","dateSemantics":"First full brewing season under John Molson's sole ownership. He became sole owner of the existing Montreal brewing enterprise in 1785; 1786 is the date the brewery itself dates its founding to.","answerStatus":"PARTIALLY","verification":"VERIFIED","answerType":"FOUNDING","effectiveFrom":null,"effectiveTo":null,"lastVerified":"2026-09-06","evidenceStrength":"B","howTallyKnows":"Two dates are evidenced and they mean different things. Parks Canada records John Molson becoming sole owner in 1785; the brewery's own founding date is 1786, the first full season under that ownership. Tally reports 1786 as the canonical answer and keeps 1785 visible rather than collapsing the two.","alternativeDates":[{"year":"1785","semantics":"John Molson becomes sole owner of the existing enterprise","sourceId":"src-answers-pass01-0003"},{"year":"1786","semantics":"Founding date the brewery itself uses","sourceId":"src-answers-pass01-0003"}],"publicCitations":[{"sourceId":"src-answers-pass01-0003","title":"Sir John Molson Brewery National Historic Site record","publisher":"Parks Canada","url":"https://www.pc.gc.ca/apps/dfhd/page_nhs_eng.aspx?id=1697","sourceType":"government-record","publicationDate":null,"accessedDate":"2026-09-06","whatItProves":"1785 sole ownership and the brewery's establishment on the St. Lawrence","public":true}],"timeline":[],"researchGaps":[{"gapType":"FOUNDING_DATE_SEMANTICS","description":"No primary record has been located establishing a first commercial sale date, which would distinguish first brewing from first trade.","status":"OPEN"}],"uncertaintyNote":"1785 and 1786 date different events and are both correct for what they describe.","relatedAnswerIds":["TBU-ANSWER-00000003"],"revision":1,"previousRevisionId":null,"createdAt":"2026-09-06T00:00:00Z","updatedAt":"2026-09-06T00:00:00Z","claims":[{"claimId":"TBU-CLAIM-00000005","subject":{"id":"TBU-BREWERY-0000001","tuid":"TB-1GEQK0R8","type":"brewery"},"predicate":"FOUNDED_IN","object":{"value":"1786","type":"year"},"validFrom":"1786","validTo":null,"verification":"VERIFIED","evidenceStrength":"B","sourceIds":["src-answers-pass01-0003"]}],"hasInternalEvidence":false,"indexing":{"index":true,"reason":"PARTIALLY + VERIFIED with substantive content"},"canonicalRoute":"/answers/when-founded/molson-brewery","apiRoute":"/api/answers/when-founded/molson-brewery"}