The second time: the American Civil War swept away the obstacles of slavery in southern plantations.

Derived knowledge point

1, American Revolution

American revolution War (English:1775-1783), or American Revolution War, is a war between the British Empire and its colonies in North America 13 states, as well as several European powers. At first, the war was mainly to confront the British economic policy. Later, because France joined the war against Britain, the scope of the war far exceeded that of British North America.

The British exploitation of the colonies, the economic development of the North American colonies and the resistance to the British economic policy led to the resistance of the North American people. 1775 began in Lexington in April, and the Continental Congress adopted the Declaration of Independence drafted by Thomas Jefferson on July 4, 776, proclaiming the birth of the United States.

During the war, Britain was able to take advantage of its naval superiority to occupy colonial coastal cities, but how to control the countryside troubled them. After the hard struggle of the North American people, Britain and the United States finally signed the Paris Peace Treaty on September 3, 783, and Britain recognized the independence of the United States. The American War of Independence ended British colonial rule, realized national independence and established a relatively democratic bourgeois political system, which was conducive to the development of American capitalism and promoted the revolutions in Europe and Latin America in the future. This war also prepared for the establishment of Canada in the future.

2. American Civil War

American Civil War, American Civil War, is the only civil war in American history. The two parties involved are the United States of America in the north and the United States in the south. The war ended in a union victory. At the beginning of the war, it was originally a war to safeguard national unity, and later it evolved into a revolutionary war to fight for the freedom and new life of slaves.

The civil war was the first large-scale war after the industrial revolution, during which the standards of modern warfare such as tactics, strategic thinking and battlefield medical care were established. Most of the 3.5 million people who took part in the war were volunteers. The war killed 750,000 soldiers and disabled 400,000 soldiers. Relevant associations estimate that the death toll may be higher, and the number of civilians affected is unknown.

The civil war left a deep impression on Europa observers at that time. Karl Marx said that the civil war was a unique great war in military history. This civil war is of great, historic, progressive and revolutionary significance.