Every fact below is checked against an institutional or primary source: the Mark Twain Project at UC Berkeley, the Mark Twain Boyhood Home & Museum, the Mark Twain House & Museum, and Twain's own texts. Short version: born Samuel Langhorne Clemens on November 30, 1835, in Florida, Missouri; licensed as a steamboat pilot in 1859; first signed "Mark Twain" in 1863; married Olivia Langdon in 1870; wrote his best-known books at a Hartford house on Farmington Avenue; went bankrupt in the 1890s and repaid every creditor anyway; died April 21, 1910, a day after Halley's Comet returned. Details below, then two circulating claims that don't survive checking.
Seven verified facts
- Born November 30, 1835, in Florida, Missouri, the sixth child of John Marshall and Jane Lampton Clemens; his father died March 24, 1847, sending eleven-year-old Sam to work as a printer's apprentice (Mark Twain Boyhood Home & Museum; Mark Twain Project).
- "Mark Twain" is a riverboat term, not an invented name — a leadsman's cry for two fathoms (12 feet) of safe water. Clemens first signed it as a byline on February 3, 1863, at the Virginia City Territorial Enterprise (Wikipedia; Mark Twain Project).
- Licensed as a Mississippi steamboat pilot on April 9, 1859, the St. Louis–New Orleans route — a trade he later said he loved better than any he followed after (Mark Twain Project).
- "Jim Smiley and His Jumping Frog" ran in the New York Saturday Press on November 18, 1865, making his comic writing nationally known almost overnight (Mark Twain Project).
- Married Olivia (Livy) Langdon on February 2, 1870. Four children followed: son Langdon, who died in infancy, and daughters Susy, Clara, and Jean (Mark Twain Boyhood Home & Museum; Mark Twain Project).
- The Clemens family's Hartford house stands at 351 Farmington Avenue, where Twain wrote several of his best-known books over roughly two decades (Mark Twain House & Museum).
- He went bankrupt in 1894, when publishing firm Webster & Co. failed and the Paige typesetter he'd bankrolled for years never worked commercially. Not legally required to repay creditors, he did so in full, financed by a world lecture tour (Mark Twain Project).
- Died April 21, 1910, at Stormfield, his home in Redding, Connecticut — one day after Halley's Comet, which had also lit the sky around his 1835 birth, returned to view (Mark Twain Project; Mark Twain Boyhood Home & Museum).
Popular claims, corrected
"The reports of my death are greatly exaggerated." Not the actual wording. Twain's real 1897 cable read: "The report of my death was an exaggeration" — singular "report," "was" rather than "are greatly exaggerated" (Wikipedia).
"I have never let my schooling interfere with my education." The Center for Mark Twain Studies traces this line to novelist Grant Allen, who used it in print over a decade before it was pinned on Twain (Center for Mark Twain Studies).
These are a sample; the Center keeps a running "Apocryphal Twain" archive (archive index), and more corrected quotes live on the quotes page.
Quick answers
Did Mark Twain really go bankrupt? Yes. His publishing firm collapsed and the Paige typesetter he had invested in for years never became commercially viable. He repaid creditors in full via a world lecture tour rather than take a legal discharge (Mark Twain Project).
What happened to Mark Twain's children? Son Langdon died in infancy in 1872. Of three daughters, Susy died of meningitis in 1896 while Twain was still abroad on the debt-repayment tour, and Jean died December 24, 1909, four months before her father; only Clara lived to old age (Mark Twain Boyhood Home & Museum; Mark Twain Project).
Related pages
Mark Twain hub · his death · verified quotes · biography.
For questions a fact list can't settle — what the river years actually taught him about noticing detail, why he still trusted the Paige typesetter after it kept getting more expensive, what Livy's editing meant to the books — this site hosts a conversational AI recreation of Twain, grounded in the sources cited above and labeled plainly as an AI persona.