Samuel Langhorne Clemens (November 30, 1835 – April 21, 1910),[1] known by his pen name Mark Twain, was an American writer, humorist, entrepreneur, publisher, and lecturer. He was praised as the "greatest humorist the United States has produced",[2] and William Faulkner called him "the father of American literature".[3] His novels include The Adventures of Tom Sawyer (1876) and its sequel, Adventures of Huckleberry Finn (1884),[4] the latter of which has often been called the "Great American Novel". Twain also wrote A Connecticut Yankee in King Arthur's Court (1889) and Pudd'nhead Wilson (1894), and co-wrote The Gilded Age: A Tale of Today (1873) with Charles Dudley Warner.

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Twain was raised in Hannibal, Missouri, which later provided the setting for Tom Sawyer and Huckleberry Finn. He served an apprenticeship with a printer and then worked as a typesetter, contributing articles to the newspaper of his older brother Orion Clemens. He later became a riverboat pilot on the Mississippi River before heading west to join Orion in Nevada. He referred humorously to his lack of success at mining, turning to journalism for the Virginia City Territorial Enterprise.[5] His humorous story "The Celebrated Jumping Frog of Calaveras County" was published in 1865, based on a story that he heard at Angels Hotel in Angels Camp, California, where he had spent some time as a miner. The short story brought international attention and was even translated into French.[6] His wit and satire, in prose and in speech, earned praise from critics and peers, and he was a friend to presidents, artists, industrialists, and European royalty. Initially an ardent American imperialist who spoke out strongly in favor of American interests in the Hawaiian Islands, he later became vice-president of the American Anti-Imperialist League from 1901 until his death in 1910, coming out strongly against the Philippine-American War.

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Twain earned a great deal of money from his writings and lectures but invested in ventures that lost most of it—such as the Paige Compositor, a mechanical typesetter that failed because of its complexity and imprecision. He filed for bankruptcy in the wake of these financial setbacks, but in time overcame his financial troubles with the help of Standard Oil executive Henry Huttleston Rogers. He eventually paid all his creditors in full, even though his bankruptcy relieved him of having to do so. Twain was born shortly after an appearance of Halley's Comet, and he predicted that he would "go out with it" as well, dying the day after the comet made its closest approach to Earth.

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Samuel Langhorne Clemens was born on November 30, 1835, in Florida, Missouri. He was the sixth of seven children of Jane (née Lampton; 1803–1890), a native of Kentucky, and John Marshall Clemens (1798–1847), a native of Virginia. His parents met when his father moved to Missouri. They were married in 1823.[9][10] Twain was of Cornish, English, and Scots-Irish descent.[11][12][13][14] Only three of his siblings survived childhood: Orion (1825–1897), Pamela (1827–1904), and Henry (1838–1858). His brother Pleasant Hannibal (1828) died at three weeks of age,[15][16] his sister Margaret (1830–1839) when Twain was three, and his brother Benjamin (1832–1842) three years later.[citation needed]

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When he was four, Twain's family moved to Hannibal, Missouri,[17] a port town on the Mississippi River that inspired the fictional town of St. Petersburg in The Adventures of Tom Sawyer and The Adventures of Huckleberry Finn.[18] Slavery was legal in Missouri at the time, and it became a theme in these writings. His father was an attorney and judge who died of pneumonia in 1847, when Twain was 11.[19] The following year, Twain left school after the fifth grade to become a printer's apprentice.[1] In 1851, he began working as a typesetter, contributing articles and humorous sketches to the Hannibal Journal, a newspaper that Orion owned. When he was 18, he left Hannibal and worked as a printer in New York City, Philadelphia, St. Louis, and Cincinnati, joining the newly formed International Typographical Union, the printers trade union. He educated himself in public libraries in the evenings, finding wider information than at a conventional school.

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Twain describes his boyhood in Life on the Mississippi, stating that "there was but one permanent ambition" among his comrades: to be a steamboatman. "Pilot was the grandest position of all. The pilot, even in those days of trivial wages, had a princely salary – from a hundred and fifty to two hundred and fifty dollars a month, and no board to pay." As Twain described it, the pilot's prestige exceeded that of the captain. The pilot had to "get up a warm personal acquaintanceship with every old snag and one-limbed cottonwood and every obscure wood pile that ornaments the banks of this river for twelve hundred miles; and more than that, must... actually know where these things are in the dark". Steamboat pilot Horace E. Bixby took Twain on as a cub pilot to teach him the river between New Orleans and St. Louis for $500 (equivalent to $16,000 in 2021), payable out of Twain's first wages after graduating. Twain studied the Mississippi, learning its landmarks, how to navigate its currents effectively, and how to read the river and its constantly shifting channels, reefs, submerged snags, and rocks that would "tear the life out of the strongest vessel that ever floated".[21] It was more than two years before he received his pilot's license. Piloting also gave him his pen name from "mark twain", the leadsman's cry for a measured river depth of two fathoms (12 feet), which was safe water for a steamboat.[22][23]

As a young pilot, Clemens served on the steamer A. B. Chambers with Grant Marsh, who became famous for his exploits as a steamboat captain on the Missouri River. The two liked and admired each other, and maintained a correspondence for many years after Clemens left the river.

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While training, Samuel convinced his younger brother Henry to work with him, and even arranged a post of mud clerk for him on the steamboat Pennsylvania. On June 13, 1858, the steamboat's boiler exploded; Henry succumbed to his wounds on June 21. Twain claimed to have foreseen this death in a dream a month earlier,[25]: 275  which inspired his interest in parapsychology; he was an early member of the Society for Psychical Research.[26] Twain was guilt-stricken and held himself responsible for the rest of his life. He continued to work on the river and was a river pilot until the Civil War broke out in 1861, when traffic was curtailed along the Mississippi River. At the start of hostilities, he enlisted briefly in a local Confederate unit. He later wrote the sketch "The Private History of a Campaign That Failed", describing how he and his friends had been Confederate volunteers for two weeks before their unit disbanded.[27]

He then left for Nevada to work for his brother Orion, who was Secretary of the Nevada Territory. Twain describes the episode in his book Roughing It.

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Orion became secretary to Nevada Territory governor James W. Nye in 1861, and Twain joined him when he moved west. The brothers traveled more than two weeks on a stagecoach across the Great Plains and the Rocky Mountains, visiting the Mormon community in Salt Lake City.  Twain's journey ended in the silver-mining town of Virginia City, Nevada, where he became a miner on the Comstock Lode.[27] He failed as a miner and went to work at the Virginia City newspaper Territorial Enterprise,[31] working under a friend, the writer Dan DeQuille. He first used his pen name here on February 3, 1863, when he wrote a humorous travel account titled "Letter From Carson – re: Joe Goodman; party at Gov. Johnson's; music" and signed it "Mark Twain".

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His experiences in the American West inspired Roughing It, written during 1870–71 and published in 1872. His experiences in Angels Camp (in Calaveras County, California) provided material for "The Celebrated Jumping Frog of Calaveras County" (1865).[citation needed]

Twain moved to San Francisco in 1864, still as a journalist, and met writers such as Bret Harte and Artemus Ward. He may have been romantically involved with the poet Ina Coolbrith.

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His first success as a writer came when his humorous tall tale "The Celebrated Jumping Frog of Calaveras County" was published on November 18, 1865, in the New York weekly The Saturday Press, bringing him national attention. A year later, he traveled to the Sandwich Islands (present-day Hawaii) as a reporter for the Sacramento Union. His letters to the Union were popular and became the basis for his first lectures

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In 1867, a local newspaper funded his trip to the Mediterranean aboard the Quaker City, including a tour of Europe and the Middle East. He wrote a collection of travel letters which were later compiled as The Innocents Abroad (1869). It was on this trip that he met fellow passenger Charles Langdon, who showed him a picture of his sister Olivia. Twain later claimed to have fallen in love at first sight.[36]

Upon returning to the United States, Twain was offered honorary membership in Yale University's secret society Scroll and Key in 1868.