History should be a core subject because it gives us perspective. There were times when things were different. We need to know how it used to be to grasp that the world has been here longer than we can imagine. It reminds us to be grateful and to not repeat our mistakes. To understand the present, we must understand the past.
The quartering act was a law enforced during the revolutionary period. It stated that colonists had to provide soldiers free housing during times of war.
The trail of tears was the journey the Cherokee nation was forced to make after being forced off of their land. This was part of Jackson's indian removal act.
The whiskey rebellion was when farmers rebelled against the recent law against whiskey. This exchange challenged the stability of the articles of confederation.