There are no clear causes that we know of that have stood at the bottom of the American Revolution however as it has happened with all major turmoil money was involved. The entire Revolutionary War lasted 8 years, between 1775 and 1783, and in the end what was left is the country we now know as United States of America – not the current formula, but close.
At first the British colonists were proud to be British and still be linked to the regent land. Due to the French and Indian War King George III started increasing the taxes on exports to colonies to make up for money lost on war equipment. This, as you can imagine did not sit well with the colonists and started boycotting the British goods. The king retaliated by sending an army. Things only degenerated from here on.
After that the cause of revolution started flowing, first of them being the Boston Tea Party where the Intolerable acts were imposed. The acts meant the closing of the Boston port, the re-training for colonist officials in Britain, colonists having to lodge British soldiers, the government of Massachusetts would be under British control, expanding British occupation to Canada.
The result of the Boston Tea Party was Continental Congress where representatives of 12 of 13 colonies were present. The output of the First Congress was the Declaration of Rights and Grievances which was sent to the King. What followed next was an armed conflict that didn’t end well for the British, a second Continental Congress and the Declaration of independence.
An Egyptology professor at UK's Swansea University recently stumbled upon a remarkable Egyptian artifact.