In what ways do conflict and injustice exist in communities, and in what ways are they addressed?
We have a number of guides that may be of interest for research into social issues and history.
There are specialized encyclopedias in the reference section covering major world conflicts, including World War I and World War II as well as the Civil War, the Vietnam War, and the Korean War. These tend to emphasize military history but include some social history as well. Other encyclopedias cover historical periods and national history.