Communism is a political and economic system that became one of the most powerful forces in the world. It shaped much of history from the early 1900's to the 1990's. Some people have considered Communism the greatest threat to world peace. Others have looked on it as the world's greatest hope.
The term Communism has several meanings. Communism can be a form of government, an economic system, a revolutionary movement, a way of life, or a goal or ideal. Communism is also a set of ideas about how and why history moves, and in what direction it is headed. These ideas were developed mainly by V. I. Lenin from the writings of Karl Marx. Lenin was a Russian revolutionary leader of the early 1900's, and Marx was a German social philosopher in the 1800's.
According to Communists, their long-range goal is a society that provides equality and economic security for all. Communists traditionally have called for government ownership rather than private ownership of land, factories, and other economic resources, called the means of production. They also have called for government planning of economic activity, and for strict rule by the Communist Party.
During the 1900's, millions of people lived under Communist rule. In 1917, Russia became the first state to be controlled by a Communist Party. Russia joined with three other territories in 1922 to form the Union of Soviet Socialist Republics (U.S.S.R.), or Soviet Union. By 1940, 12 more republics were added, and the Soviet Union had become one of the most powerful countries in the world.
After World War II (1939-1945), Soviet troops occupied most of Eastern Europe. The Soviet Union was thus able to help Communist governments take power in that region. In 1949, the Chinese Communist Party won a civil war for control of China.
The rapid spread of Communism after World War II brought about a struggle for international power and influence between Communist countries and non-Communist countries. This struggle was known as the Cold War. Most people believe that events in the late 1980's and early 1990's marked the end of the Cold War. These events included the collapse of several Communist governments in Eastern Europe in 1989 and the fall of Communism in the Soviet Union in 1991. By 1992, Communist parties remained in power in only a small number of countries, including China, Cuba, Laos, North Korea, and Vietnam.
The terms Communism and socialism are frequently confused. Communists usually refer to their beliefs and goals as "socialist." But socialists do not consider themselves Communists. Communists and socialists both seek public ownership or regulation of the principal means of production. But most socialists favor peaceful and legal methods to achieve their goals, while Communists have often used force without regard to law. Socialism may or may not be based on the teachings of Marx. Communism is based on the teachings of both Marx and Lenin.
For a more complete understanding of how Communism compares with other political or economic systems, see Capitalism; Economics; Government; and Socialism.

