Colonist were very angry that they had to pay high taxes for tea. So they decided to act upon the situation. The colonists dressed up as indians and decided to rebel against the british.
Since the colonist were upset instead of buying the tea they decided to throw it out of the the boat into the Boston Harbor. That started a huge argument against the British and the colonists. The colonists thought that this was the best way to protest.
As a result of the Boston tea party the British decided to shut down the boston Harbor until all 340 chests of tea were paid for. That is how the Boston Port act came upon us.