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Why did Mark Twain chose a pseudonym?
Samuel Langhorne Clemens explained the origin of his nickname Mark Twain term of river navigation. In his youth, the future writer was working on the boat on the Mississippi River. Safe Depth for passing vessel is two fathoms (3, 7 meters), and this figure after measuring lot usually chanted as «by the mark twain», where the twain - archaic form of the numeral two. ("Museum of the facts")
