For college-level coursework, wikipedia.com, history.com, and other general knowledge websites do not count as authoritative academic citations.
To find authoritative sources to enrich the content of your presentation, I recommend the following list of research/authoritative resources:
In your group:
1. Research your topic using the above databases. Each person should find one resource that they could potentially use for their upcoming presentation.
2. Together, answer the questions about the resource in the below document.