Use the background sources here, as well as other sources you might encounter, to gather information about your topic and consider what you still need to know before you start researching. You can use this information in searching for primary sources.
- Dates - Places - Names of persons involved - Names of organizations, government agencies, etc. - Names of particular laws or events
Background sources can also help you understand the larger historical context, so that you can determine what primary sources might be most useful or how a particular primary source fits into what was happening at that time.
Subject encyclopedias are a good starting point for researching a topic. The library provides access to hundreds of print and online encyclopedias. The articles in a subject encyclopedia are usually written by a scholar or expert in the field. Using subject encyclopedias at the beginning of your research can help you to define key terms to use in searching the library catalog and databases. Often these resources will include a list of references (books or journal articles) that you can use to identify other sources on your topic.
TOPIC DATABASES
SUBJECT ENCYCLOPEDIAS
The Oxford Handbook of European History, 1914-1945 by 
Routledge Handbook of Contemporary European Social Movements: Protest in Turbulent Times by 
The Oxford Handbook of the Ends of Empire by 
Europe, 1789-1914: Encyclopedia of the Age of Industry and Empire by 
Europe Since 1914: Encyclopedia of the Age of War and Reconstruction
Separatist Movements: A Global Reference by STATISTICS
When looking for statistics, think about who would be have been interested in gathering that data at that time period. Governments are often a good starting point, but religious organizations or non-governmental organizations might also have been involved in gathering data.
International Historical Statistics by 
