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 hyde park open to the public?" whose answer is 1637.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did hyde park open to the public
Useful Output:

Doc 1: Charles I created the Ring (north of the present Serpentine boathouses), and in 1637 he opened the park to the general public.
Doc 2: But it was in 1637, during Charles I's reign, that the park, north of the present Serpentine boathouses, was opened to the public. At the
Doc 3: Following King Charles I's accession to the throne, the park was officially opened to the public in 1637.  Hyde Park is free to visit and is
Doc 4: It was opened to the public in the early 17th century. In 1851 it was the location of the Great Exhibition, which was held in the newly
Doc 5: Comments8 · The Crystal Palace; Hyde Park, London, 1851 (First Photographs) + The World's (Un)Fair Narrative · History of Buckingham Palace | most