You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "when did robert louis stevenson write treasure island?" whose answer is 1881.
Each document should contain about 30 words, and these documents should contain useful information.

Query: exact year when robert louis stevenson wrote treasure island
Useful Output:

Doc 1: During this period, he wrote some of his most enduring fiction, notably Treasure Island (1883), Kidnapped (1886), Strange Case of Dr. Jekyll and Mr. Hyde (1886)
Doc 2: Treasure Island is a book that was written for boys about boys. Robert Louis Stevenson's twelve-year old stepson Lloyd ordered that there be no women in
Doc 3:  Robert Louis Stevenson's famous works include the adventure novel Treasure Island (1881).  adventure tale deliberately written in
Doc 4: Born in Edinburgh on November 13 1850 – 170 years ago today – Stevenson is one of the world's greatest writers. He is best known for Treasure
Doc 5: It was huge in the early 19th with the Romantics, but Victorian literature was all about Adventure, Sci-fi, and Mystery, so Robert Louis