The American Revolution occurred, because the colonists were tired of being mistreated, with heavy taxes imposed on them, having to quarter unneeded troops in their own houses, and not having as much freedom, that they decided that it was best to break away from the British Empire The Massacre at Boston proved to be one of the last straws.
hope this helps
One of the main ways in which changes to the railroad helped American industries to grow is that the expansion of the rail system led to increased migration to the west, which led to more farming and agricultural output. Another would be that it led to settlements that ultimately led to business that were able to conduct business over state lines with great ease.
Many consider the French revolution as the being the spearhead of the modern politic.
* The revolution single handedly crushed the monarchical way of politics, the aristocratic domination up to that point in France, and church domination of French politics.
*The revolution furthermore abolished the feudal system and was one of the biggest steps towards modernity through out history.
*The revolution was a successful endeavour on the part of the French people because it reformed social tradition @and the hierarchy of France.
*Aristocracy by making all men equal and the enlightenment ideals which the revolution was based on came through to a great extent and in this way the French revolution was a success
This could be many things, but assuming that this wide range of people are organized into smaller units such as states, this would most commonly be referred to as a republic.