The investiture Controversy or investiture Contest was a conflict between church and state in medieval Europe.. The investiture controversy began as a power struggle between pope Gregory VII and Henry IV, Holy Roman Emperor.
Charlemagne was able to gather together many of the former
Roman Empire’s European territories by conquering many European kingdoms and fighting
off invaders. He ventured out to different lands and invaded different cities
and countries to be part of the Roman Empire.
A regent is someone who rules for a child until the child is old enough to rule.
Sectionalism refers to placing local interests above those of the nation. As the states started putting their own values before those of others the hostility grew in the years preceding the civil war. It was the slavery that divided the North and the South a led to the growth of the sectionalism.