What is special about mark twain's realism

Mark Twain dealt largely with lower strata of society. Mark Twain's contribution to the development of realism and to Americian literature as a whole was partly through his theories of local Colorism in American fiction,and partly through his colloquial style.
Mark Twain prefered to represent social life through portraitsof local places whici he knew best.He drew heavily from his own rich fund of knowledgeof people and places.He confinedhimself to the life with whichhe has familiar.By quoting from his own experince,Mark Twain managed to transform in to art the freedomand humor,in short,the finest elements of wester culture.

什么是特别的关于马克吐温的现实主义

标准答案：马克吐温的现实主义的特别之处是什么？

American writer. Cypriot absurd尔朗赫恩克莱whose real name is Clemens. Is the pen name Mark Twain. Born in the banks of the Mississippi River town of Hannibal a poor rural family lawyers, who go out to Baishi apprenticeship. When the typesetting workers, the Mississippi sailors, the Yugoslav Army sol