{"schemaVersion":"1.0","generatedAt":"2026-09-22","licence":{"status":"not-yet-granted","spdx":null,"statement":"No licence has yet been granted for SmellBook-created datasets. They are publicly readable; reuse beyond citation and quotation needs permission until a licence is published."},"node":{"entityType":"period","urn":"smellbook:period:1839","key":"1839","label":"1839","description":"1839: a time described in a historical source SmellBook cites (exact year). SmellBook lists the smells its checked historical passages document at this time; they record what was written then, not how anything smells today.","edtf":"1839","precision":"year","canonicalUrl":"https://smellbook.com/periods/1839","attribution":"SmellBook (https://smellbook.com)"},"outgoing":[],"incoming":[{"relation":"historically-documented-in","label":"time documenting","entity":"smellbook:smell:ironed-shirt","entityLabel":"Ironed Shirt","record":"/data/graph/smell/ironed-shirt.json","provenance":[{"basis":"claim-historical-passage","field":"historicalPassages[CLM-IRONING-001].period","claim":"smellbook:claim:a-smell-of-ironing-in-nicholas-nickleby","period":"1839","periodBasis":"publication-date","locator":"p. 230","evidenceClass":"historical"}]}],"corrections":[],"citation":"SmellBook. (2026). 1839 (period). SmellBook knowledge graph, dataset release of 2026-10-25. smellbook:period:1839. https://smellbook.com/periods/1839","boundary":"Edges are typed and unweighted; none is a similarity, recommendation or personalization score. Browser-local Personal SmellBook data is never part of this export."}