America was born from 1776! It has a history of 242 years. On July 4, 776, the United States issued the Declaration of Independence, announcing the establishment of the United States of America. It has been 242 years. The United States originated from the North American colony that broke away from British rule in 1776, and the colonial representatives of 13 states jointly issued the Declaration of Independence. After an arduous war of independence, it perished in 65438. 1776 On July 4th, the Continental Congress formally adopted the Declaration of Independence in Philadelphia, announcing the birth of the United States.

/kloc-In the middle of the 0/8th century, there was a rift between the British colonies in the United States and Britain. With the continuous expansion of the colony, they gradually realized the seriousness of the development of the situation, thus sprouting the idea of independence. 1773, Boston Tea Party, dumping by anti-British colonists.

1774, 13 representatives of three states gathered in Philadelphia to hold the first continental congress, hoping to solve the problem peacefully with Britain. But the British king insisted that the colony must unconditionally submit to the British king and accept punishment. 1775, the war was ignited in Lexington, Massachusetts, and the North American War of Independence broke out.

1776 in may, the second continental congress was held in Philadelphia, which strengthened the determination of war and independence and signed the famous declaration of independence on July 4. Taking this opportunity, the Declaration of Independence is regarded as the beginning of the founding of the United States, and this day (July 4th) is also regarded as the National Day by the United States.

1778 In February, Benjamin Franklin successfully persuaded the Bourbon dynasty, which led to the signing of a military alliance treaty between France and the United States, and France officially recognized the United States. France, Spain and the Netherlands went to war.

178 1 year, the battle of Yorktown was a complete victory, and the US military won a decisive victory. Since then, except for several battles at sea and sporadic battles on land, the war on the North American continent has basically stopped.

1787, a federal conference was held in Philadelphia, during which Washington was promoted to chairman. The meeting decided that the national government has the power to levy taxes, mint coins, adjust commerce, declare war and conclude treaties, and at the same time adopt Montesquieu's principle of separation of powers, and the three institutions of legislation, administration and justice check and balance each other.

1812 ~1815 years, Britain invaded the newly established United States again, which is known as the Second American War of Independence. After the war, American States became more United.

Extended data:

After independence, the United States actively expanded its territory, and its territory gradually expanded from the Atlantic coast to the Pacific coast. Significant changes have taken place in the economy, and the north-south economy has developed in different directions. The contradiction between north and south is getting worse. From April 186 1 to April 1865, the war between the south and the north of the United States was also called the American civil war. In the end, the bourgeoisie led by the North won and unified the whole country.

1865, the reconstruction period began, and slavery was gradually abolished. 1877, democratic reconstruction was carried out in the south, and the democratic progress law was enacted, which marked the end of democratic reconstruction. ?

Later, the United States completed the industrial revolution and its strength increased greatly. The two world wars established the hegemonic position of the United States in the capitalist world. After the cold war began, it and Soviet Union share the world. ?

After the Cold War, the United States became the only superpower in the world. However, the economic situation in the United States was relatively stable in the 1980s. ?

In 1990s, American computer industry developed rapidly, which promoted the global high-tech information industry and started a new generation of industrial revolution.

References:

Baidu Encyclopedia-American History