False. North America was inhabited by many different Native American tribes.
Answer: False
Explanation:
The heavy casualties were not because of the tribes. It was because of the debilitating fevers that they got on the journey. That men eventually called it a death sentence to make the journey.
Some examples of this were the Fugitive Slave Act, Preston Brooks's attack on Charles Sumner, and the Dred Scott decision (the part of it which said that African Americans could never be citizens). None of these events tangibly hurt the North or the South.
Seven people, he killed seven people