Passage of the Jim crow laws
The modern Agricultural Revolution was started by the increase in farm technology and new ideas like crop rotation.
The American colonists were justified in doing this simply because their colonies had become too big and too important to be treated as a colony by the British. The British should have given the colonies some autonomy, but they did not. The analogy I like to use is that of teens and their parents. Parents have to give teens more independence as they grow up. If they do not, the teens may justifiably rebel.
The British were not, on the whole, brutal or oppressive towards the colonists. However, they would not let the colonists have much in the way of self-rule. This had been fine when the colonies were still small and economically weak. By the 1760s and 1770s, however, the colonies were "teenagers." They were big and strong enough to expect some autonomy. When Britain reacted to requests for autonomy by being more strict, the colonists were justified in rebelling.
Answer:
An oligarchy.
Explanation:
Oligarchy is a political concept that refers to minority rule, in which few people rule by having access to capital or inherited title. Informally, the term oligarchy can generally refer to a limited group with great power, often in a political system with or without formal democratic elements.
Oligarchs sometimes rule in formal democratic systems where dominant politicians constitute a small elite that recreates its parliamentary influence by controlling key economic resources and extensive personal networks. New democratic states are often used as examples of this, but there are also examples of oligarchy tendencies in established democratic political systems.