Talk to a reference librarian at most campus libraries. For history questions you might start with:
UCB undergraduates can sign up for a Research Advisory Service appointment during peak periods of the semester.
Go here to learn about other ways to get assistance with your research, including 24/7 chat reference, e-mail reference, and contacting subject specialists.
You can type your question directly into this chat window to chat with a librarian. Your question may be answered by a reference librarian from Berkeley, from another UC campus, or another academic library elsewhere in the world. We share information about our libraries to make sure you get good answers.
If the librarian can't answer you well enough, your question will be referred to a Berkeley librarian for follow-up.
Have fun chatting!