The two main sources are Maps and Artifacts
Answer:
William Lloyd Garrison and Arthur Tappan
Explanation:
keep the Russians from taking over Europe. just too the test and passed
You will have multiple answers, the following are:
1. Historians with different perspectives
2. Historians with different points of view
3. Historians with varying personal biases
4. Historians with different interests of cause and effect
Hope this helps! Good luck!