I believe what you're looking for is The Great Depression
Answer:
first energetic and eager to go to work
Now he dreads the idea of returning to work
Explanation:
The most important event is the introduction of agriculture,
Answer:
3: The document shows the voice of a person who is facing sectional divide and are divided on the the issue of slavery. The slave is asking for the liberation from slavery and want them to be heard. Slave population want the equal rights or privilege as others.
4: It creates tension as it cause riots and the human population can get hurt. The riots can turn into war if there will be no solution of the problem.