The first picture shows The Boston Tea Party. People are angry at Britain for imposing taxation without representation, dumped British tea into the harbor. The event was the first major act of defiance to British rule over the colonists. After that in 1775, known as the beginning of the American Revolutionary War start at Lexington. The third one shows that In 1774, a Continental Conference was held in Philadelphia. They decided to start military operations against the British. After that In 1776, this declaration was approved by the Second Continental Congress in Philadelphia and became the US Independence Day after that day. Consequential the Battle of Yorktown broke out in 1781, when the US and French forces teamed up to besiege the British troops in Yorktown and eventually won a decisive victory. In the end Britain recognizes American independence in 1983.