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: "By 1938, Harry McEvoy had established a large factory in Greater Manchester, what is the population of that city?" whose answer is 37,500.
Each document should contain about 30 words, and these documents should contain useful information.

Query: population of Greater Manchester 1938 historical
Useful Output:

Doc 1: Footnote Simon claimed that there were no cellar dwellings remaining in Manchester by 1938  Manchester's population had fallen to 404,861 in
Doc 2: The Picture Post Historical Archive comprises the complete archive of the Picture Post from its first issue in 1938 to its last in 1957 - all digitized from
Doc 3: Towards the end of the 19th century, the area assumed a more commercial character and the resident population declined to a point where St Peter's Church had no
Doc 4: The population of Manchester soared and by the end of the century, it had reached 70,000. In the 18th century, Manchester continued to be famous
Doc 5: Script for the Charter Centenary Celebrations Historical Pageant, Platt Fields, Manchester. Rebound in brown cloth. 245 x 185 mm. 112 pp. Includes adverts.