O Henry was the most famous short story writer in the early 19th century.

O Henry was one of the most famous American short story writers in the early 19th century. His works were often humorous and satirical, depicting complex characters and plots full of drama and surprise, and were regarded as classics of American literature. O 'Henry's works cover a wide range of topics and styles, including novels, plays, essays, and poems. His representative works, including The Gift of the Magi, The Last Leaf, and Twenty Years Later, were widely praised and influenced. O 'Henry's works were mostly published in short story collections and journals. His writing style was humorous, satirical, bizarre, and dramatic, which was deeply loved by readers. His works were not only popular in the United States, but also widely praised and influenced in Europe, Asia and other places. O 'Henry died on November 15, 1862, at the age of 41. His legacy included multiple literary awards and copyrights to his works, which are still widely read and studied today.