Good background information may be found in reference sources.
Reference sources (dictionaries, encyclopedias, manuals, guides) provide the following types of information on virtually any topic:
Find additional reference sources by searching Bishop Library's Catalog. Click on Advanced Search, choose Type, choose Reference.
Image Source: Public Domain. USAF. 1944. Wikimedia Commons.
Print subject encyclopedias, available in Bishop Library. STACKS are on the second floor: REFERENCE are on the first floor.