Samuel Langhorne Clemens (November 30, 1835 – April 21, 1910), better known by his pen name Mark Twain, was a famous and popular American humorist, novelist, writer and lecturer.
At his peak, he was probably the most popular American celebrity of his time. William Faulkner wrote he was "the first truly American writer, and all of us since are his heirs." Clemens maintained that the name "Mark Twain" came from his years on the riverboat, where two fathoms (12 ft, approximately 3.7 m) or "safe water" was measured on the sounding line, was marked by calling "mark twain". But it is often thought that the name actually came from his wilder days in the West, where he would buy two drinks and tell the bartender to "mark twain" on his tab. The true origin is unknown. In addition to Mark Twain, Clemens used the pseudonym "Sieur Louis de Conte". (More under "Pen names," below.)


    Samuel Langhorne Clemens was born in Florida, Missouri, the third of four surviving children of John and Jane Clemens.While he was still a baby, the family moved to the river town of Hannibal, Missouri, hoping their fortunes would improve there. It was this town and its inhabitants that the author Mark Twain later put to such imaginative use in his most famous works, especially The Adventures of Tom Sawyer (1876).

    Clemens' father died in 1847, leaving many debts. The oldest son, Orion, soon began publishing a newspaper and Sam began contributing to it as a journeyman printer and occasional writer. Some of the liveliest and most controversial stories in Orion's paper came from the pen of his younger brother--usually when Orion was out of town. Clemens also traveled to St. Louis and New York City to earn a living as a printer.

    But the lure of the Mississippi eventually drew Clemens to a career as a steamboat pilot, a profession he later claimed would have held him to the end of his days, recounting his experiences in his book Life on the Mississippi (1883). But the Civil War and the advent of railroads put an end to commercial steamboat traffic in 1861, and Clemens had to look for a new job.

    After a brief stint with a local militia (an experience he recounted in his short story, "The Private History of a Campaign That Failed" in 1885), he escaped further contact with the war by going west in July of 1861 with Orion, who had been appointed secretary to the territorial governor of Nevada. The two traveled for two weeks across the Plains by stagecoach to the silver-mining town of Virginia City, Nevada.


    Clemens' experiences out West formed him as a writer and became the basis of his second book, Roughing It. Once in Nevada he became a miner, hoping to strike it rich digging up silver in the Comstock Lode and staying for long periods in camp with his fellow prospectors--another mode of living that he later put to literary use. Failing as a miner, he fell into newspaper work in Virginia City for the Territorial Enterprise, where he adopted the pen name "Mark Twain" for the first time. In 1864, he moved down to San Francisco and wrote for several papers there.

    In 1865, Twain had his first literary success. At the behest of humorist Artemus Ward (whom he had met and befriended in Virginia City during Ward's lecture tour of 1863), he submitted a humorous short story for a collection Ward was publishing. The story arrived too late for that book, but the publisher passed it to the Saturday Press. That story, originally entitled "Jim Smiley and his Jumping Frog" but now better known as "The Celebrated Jumping Frog of Calaveras County," was reprinted nationwide, and called by Atlantic Monthly editor James Russell Lowell "the finest piece of humorous literature yet produced in America."

    In the spring of 1866 he was commissioned by the Sacramento Union newspaper to travel to the Sandwich Islands (now Hawaii) to write a series of letters reporting on his journey there. On his return to San Francisco, the success of the letters and the personal encouragement of Colonel John McComb (publisher of San Francisco's Alta California newspaper) led him to try his hand at the lecture circuit, renting the Academy of Music and charging a dollar a head admission. "Doors open at 7 o'clock," Twain wrote on the advertising poster. "The trouble to begin at 8 o'clock."

    The first lecture was a wild success, and soon Twain was traveling up and down the state, lecturing and entertaining to packed houses.


    But it was another trip that established his fame as an author. Twain convinced Col. McComb of the Alta California to pay for Twain's passage aboard the steam packet Quaker City on an American excursion to Europe and the Middle East. The resulting letters Twain produced for the newspaper reporting on the trip formed the basis of his first book, The Innocents Abroad, a large and humorous travelogue that pointedly failed to worship Old World arts and conventions. Sold by subscription, the book became hugely popular and put its author in a spotlight he never willingly relinquished for the rest of his life.

    After the success of Innocents Abroad he married Olivia Langdon in 1870 and moved to Buffalo, New York, then to Hartford, Connecticut. They had four children Langdon, Susy, Clara, and Jean. Langdon died in 1872, and the three others were born between 1872 and 1880. During this period, he lectured often in the United States and England.

    Later he wrote as an avid critic of American society. He wrote about politics with his Life on the Mississippi.


    The author's own version of how he took his more famous pen name, Mark Twain, is interesting. In chapter 50 of Life on the Mississippi, he says he borrowed it from Captain Isaiah Sellers, a riverboat captain who "... used to jot down brief paragraphs of plain, practical information about the river, and sign them 'MARK TWAIN,' and give them to the New Orleans Picayune...

    "It so chanced that one of these paragraphs became the text for my first newspaper article. I burlesqued it broadly... I showed my performance to some pilots, and they eagerly rushed it into print in the 'New Orleans True Delta.' It was a great pity; for it did nobody any worthy service, and it sent a pang deep into a good man's heart. There was no malice in my rubbish; but it laughed at the captain. It laughed at a man to whom such a thing was new and strange and dreadful...He never printed another paragraph while he fresh new journalist, and needed a nom de guerre; so I confiscated the ancient mariner's discarded one, and have done my best to make it remain what it was in his hands—a sign and symbol and warrant that whatever is found in its company may be gambled on as being the petrified truth; how I have succeeded, it would not be modest in me to say."

    Modern scholars, however, have investigated this version of the origin of Twain's pseuodonym and found that although Isaiah Sellers, indeed, was an actual writer, whom Clemens parodied early in his career, there is no evidence that Sellers ever used the name "Mark Twain."

    Clemens used the pseudonym "Sieur Louis de Conte" as his pen name for his fictionalized biography of Joan of Arc (1896).


    Twain's fortunes then began to decline; in his later life, Twain was a very depressed man, but still capable. Following the erroneous publication of a premature obituary in the New York Journal, Twain famously responded: "The reports of my death are greatly exaggerated" (June 2, 1897).

    His only son, who was sick from the time of his birth, died after Clemens took him out for a walk on a blistery day without covering his carriage. His most favored daughter died while Clemens was in Australia completing a lecture series. After giving birth to four children, his wife was sickly for most of her adult life. All in all he lost 3 out of 4 of his children, and his beloved wife, Olivia Langdon, before his death in 1910. He also had some very bad times with his businesses. His publishing company ended up going bankrupt, and he lost thousands of dollars on one typesetting machine that was never finished. He also lost a great deal of revenue on royalties from his books being plagiarized before he even had a chance to publish them himself.

    In 1893, Twain was introduced to industrialist and financier Henry Huttleston Rogers, one of the principals of Standard Oil. Rogers reorganized Twain's tangled finances, and the two became close friends for the rest of their lives. Rogers' family became Twain's surrogate family and Twain was a frequent guest at the Rogers townhouse in New York City and summer home in Fairhaven, Massachusetts. The two were drinking and poker buddies. In 1907, they traveled together in Rogers' yacht Kanawha to the Jamestown Exposition held at Sewell's Point near Norfolk, Virginia in celebration of the 300th anniversary of the founding of the Jamestown Colony.


 
    Twain's grave in Elmira, NYWhile Twain openly credited Rogers with saving him from financial ruin, there is also substantial evidence in their published correspondence that the close friendship in their later years was mutually beneficial, apparently softening at least somewhat the hard-driving industrialist Rogers, who had apparently earned the nickname "Hell Hound Rogers" when helping build Standard Oil earlier in his career. In one of history's ironies, Rogers was introduced by Twain to investigative journalist Ida Tarbell, who is widely credited with exposing the dark side of Standard Oil, and did so largely through information she obtained through meetings with Rogers. During the years of their friendship, influenced by Twain, Rogers helped finance the education of Helen Keller and made substantial contributions to Dr. Booker T. Washington. After Rogers' death, Dr. Washington revealed that Rogers (with a much-hated public persona) had been generously funding many small country schools and institutions of higher education in the South for the betterment and education of African Americans for over 15 years.

    Although by this late date he was in marginal health, in April, 1909, Twain returned to Norfolk with Rogers, and was a guest speaker at the dedication dinner held for the newly completed Virginian Railway, a "Mountains to Sea" engineering marvel of the day. The construction of the new railroad had been solely financed by industrialist Rogers.

    When Rogers died suddenly in New York less than two months later. Twain, on his way by train from Connecticut to visit Rogers, was met with the news at Grand Central Station the same morning by his daughter. His grief-stricken reaction was widely reported. He served as one of the pall-bearers at the Rogers funeral in New York later that week. When he declined to ride the funeral train from New York on to Fairhaven, Massachusetts, for the interment, he stated that he could not undertake to travel that distance among those whom he knew so well, and with whom he must of necessity join in conversation.

Twain himself died less than one year later. He wrote in 1909, "I came in with Halley's Comet in 1835. It is coming again next year, and I expect to go out with it." And so he did. Halley's comet can be seen in the Earth's skies once every 75-76 years. It was visible on November 30, 1835, when Mark Twain was born and was also visible on April 21, 1910, when he died (although the exact dates of Halley's highpoint were November 16th and April 10th, respectively).

    After his death, one of the prominent figures who paid public tribute to him was the President of the United States at the time, William H. Taft. In his words, "Mark Twain gave real intellectual enjoyment to millions, and his works will continue to give such pleasures to millions yet to come. He never wrote a line that a father could not read to a daughter." (Taft was presumably unaware of 1601).


Links ...
Major portions of the above text were directly copied from public domain documents found on the internet.
I have listed those Internet Addresses beneath for your convenience.


Wikipedia
Mark Twain In His Times
Mark Twain Papers & Projects
Mark Twain The Official Website
The Literature Network
Mark Twain Books
Elmira College
The Mark Twain House & Museum