Notes on verification

Completion date of July 1900 is well corroborated across sources. Start date is disputed between 1896 (German scholarly tradition, Buddenbrooks-Handbuch) and 1897 (English-language sources), reflecting differing definitions of when writing 'began'. Claim matches one legitimate scholarly tradition but not universal consensus. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.525 clusters=2 claim_tier=everyday | framework convergence=partial (upstreams: Buddenbrooks-Handbuch (Moulden/von Wilpert, 1988), German Wikipedia / Wikidata biographical entry) — publishers independent, evidence may not be | kind=empirical eligibility=medium]