Pre-Colonial Era

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On April 18, 1775, in Lexington and Concord, near Boston, colonial patriots fired their guns in revolt, kicking off the Revolutionary War.

In May, the Second Continental Congress was convened, which strengthened the determination to war and independence, and drafted the "Declaration of Independence".

On July 4, 1776, the independence of the United States was proclaimed, and on July 4, 1776, the Continental Congress issued the Declaration of Independence in Philadelphia by George Washington.

The Declaration of Independence was drafted by Thomas Jefferson, adopted on July 4, 1776 by a special committee of the Continental Congress, and signed into effect by John Hancock, president of the Continental Congress.

The Declaration of Independence clearly states that all human beings are created equal and have the natural right to pursue happiness and liberty; it vividly enumerates the crimes committed by the British colonialists on the American continent; The 4th is designated as Independence Day by the United States).

The Declaration of Independence is a great document of world historical significance. The day on which the Declaration of Independence was adopted has also become a holiday commemorated forever by the American people, and is designated as Independence Day.

Completely seceding from the United Kingdom, the purpose is to "seek survival, seek freedom, seek happiness" and realize the ideal of the Enlightenment.

When the War of Independence began, the two sides had a huge disparity in strength, and the war lasted for 8 years.

From August 1776 to September 1777, the American people, under the leadership of General Washington, fought valiantly against Britain and defended the New World. The later victory of Saratoga led to the formation of an alliance between the United States and France in 1778.

Spain and the Netherlands also joined the war against Britain, weakening the British blockade of the North American coast. The power of the United Kingdom and the United States tends to be balanced. In 1778, H. H., who succeeded Howe as commander of the British army Clinton's offensive in the South.

Charleston was captured in May 1780. Clinton thought the victory of the South had been decided, and returned to New York with his army, and sent Cornwallis to stick to Charleston. However, the North American guerrillas cooperated with the Continental Army and severely damaged the British army in Cowpens and Guilford in the Jinshan area.

In April 1781 the Continental Army began a strategic counteroffensive. Green led the Continental Army south to South Carolina, forcing the British to retreat to the coast.

Cornwallis went north to Virginia on April 25, in pursuit of a Continental Army led by the Marquis of Lafayette. Lafayette escaped the British pursuit. Cornwallis moved to Yorktown (a translation of Yorktown).

Taking advantage of Cornwallis' tactical error, Washington developed a coordinated plan to encircle and destroy the British army from land and sea. Washington persuaded the French navy commander, Count de Grasse, to transfer 28 French warships from the West Indies into the Chesapeake Bay.

Washington's Continental Army and Rochambeau's French Army joined Lafayette's Continental Army in Virginia and surrounded Yorktown.

By October 1781, the United States and France had captured Yorktown, the last British stronghold, and 8,000 British soldiers had surrendered. The U.S. military won a decisive victory, the British Parliament was forced to agree to peace, and the war effectively ceased.

In 1783, the United Kingdom and the United States signed the Treaty of Paris, and the United Kingdom officially recognized the independence of the United States. This also fully demonstrated the courage and wisdom of the American people in the face of colonial rule.

During the war, the Continental Congress formulated the Articles of Confederation, and from 1781 to 1787, 13 states formed the Confederate Congress and proclaimed the establishment of the American Republic.

In 1787, the Constitutional Convention was held in Philadelphia, and representatives of large and small states agreed to elect two senators from each state after debate; on the issue of s*****y, the North made a major compromise with the South, tacitly acquiescing to the existence of s*****y , In terms of taxation and distribution of seats in the House of Representatives, the southern black slaves are calculated by 3/5 of the population. The meeting finally formulated a draft constitution.

This is the world's first written constitution. It was ratified by nine states in June 1788. According to the Constitution, the United States has established a federal state with the separation of legislative, executive and judicial powers and mutual checks and balances. Later, the first 10 amendments to the Constitution (later known as the "Bill of Rights") were added. The Act went into effect in December 1791 and was ratified by 11 states.