Mark Twain, pseudonym of Samuel L. Clemens (1835-1910), was born in Florida, Missouri, and grew up in Hannibal on the west bank of the Mississippi River. He attended school briefly and then at age thirteen became a full-time apprentice to a local printer. When his older brother Orion established the Hannibal Journal, Samuel became a compositor for that paper and then, for a time, an itinerant printer. With a commission to write comic travel letters, he traveled down the Mississippi. Smitten with the riverboat life, he signed on as an apprentice to a steamboat pilot. After 1859, he became a licensed pilot, but two years later the Civil War put an end to the steam-boat traffic. In 1861, he and his brother traveled to the Nevada Territory where Samuel became a writer for the Virginia City Territorial Enterprise, and there, on February 3, 1863, he signed a humorous account with the pseudonym Mark Twain. The name was a river man's term for water "two fathoms deep" and thus just barely safe for navigation. In 1870 Twain married and moved with his wife to Hartford, Connecticut. He became a highly successful lecturer in the United States and England, and he continued to write.