A lot of primary source material is available through our subscription databases. Look for documents from the time period, or newspaper articles about particular events. In the history databases, use limiters (on the left side of the page) to limit your results to primary sources. Use your Menlo username and password to log in.
The library has many books on the topic of imperialism and colonization. You can find information on your topic by searching the library catalog, here:
Look for books with a call number in the 320's (imperialism) or in the 900's (history of particular countries).