America is a country of immigrants. What historical events are closely related to its birth?

/kloc-At the beginning of the 7th century, Britain began to colonize North America. The first North American immigrants were mainly farmers who lost their land, hardworking workers and Puritans who were persecuted by religion. 1620, they took the Mayflower to North America and made the Mayflower Convention on board. On June165438+1October 2 1 day, the Puritans landed in Plymouth and signed the Mayflower Convention with 4 1 free adult men. The content is to organize citizen groups; Drafting laws and regulations, etc. Lay the foundation of autonomous government.

/kloc-In the mid-8th century, the economy, culture and politics of the colony were relatively mature. The colonial parliament still believed in King George III of England, but pursued the same status as the British parliament and refused to be a second-class citizen of Britain. But at this time, after the end of the seven-year war between Britain and France, they were eager to consolidate their territory, which made the colonial people in North America levy heavy taxes. King George III of England changed his laissez-faire policy and advocated high-handed means. This led to the resistance of the colonial people, such as "no taxation without representation", "Boston Massacre" and "Intolerance Act". 1775 In April, the "Fires of Lexington" started in Lexington and Concord, which started the American War of Independence. Later, these colonies became the original thirteen independent states in North America.