The Sugar Act was important because it was the first of the taxes instated by Britain, and one of the first reasons for colonial discontent.
Let us in!
The Quartering Act forced colonist to quarter British soldiers in their homes, and they had no choice on the matter. This is another example of Britain forcing to colonists to do something they didn't want to do.
We should create a system to notify other colonies of attacks.
Patrick Henry introduces the idea that only Americans should be allowed to tax the colonies. This is a key point of "rebellion" where the colonists realize that they shouldn't bow down to Britain's authority.
That'll teach Britain for taxing us!
The Boston Massacre was the first time British soldiers attacked colonists, and soured their relationship even further. This also spawned a large amount of anti-Britain propaganda.
The Boston Massacre (1770)
The Committee of Correspondence was established by Samuel Adams with 21 members. Its purpose was to inform the other colonies if a colony was attacked. The colonies were preparing for war.
Committee of Correspondence (1772)
The Boston Tea Party was the final straw for the British, and caused them to enforce even more brutal taxes and policies. This was the first act by the colonists that had a big effect on Britain and its operations.