Samuel Langhorne Clemens (Mark Twain) was born on November 30, 1835, in Florida, Missouri.
Notes on verification
Consistently confirmed by multiple authoritative sources including Britannica, the Mark Twain House & Museum, and the Library of Congress. [cascade flags: aggregator_dropped_primary_exists | tier=silver indep_score=0.925 clusters=2 claim_tier=everyday | kind=empirical eligibility=high]
Sources
- Unswerving irregularity | USPTO (seed:firsts_and_inventions)
- https://www.marktwainhouse.org/about/mark-twain/ (corroboration)
- https://www.loc.gov/rr/program/bib/twain/ (corroboration)