It was birth on a Saturday, on the twenty-second day of the month of December, in the year of out Lord 1922. It was named the Union of Soviet Socialist Republics (USSR [CCCP in Russian]), but most of the world would simple come to know it as the Soviet Union.
At the height of its power, it had come to engulf most of Eastern Europe, some of Germany, and portions of the Middle East. It would plunge all those under it's domain into approximately seventy years of darkness. From it, the world would become familiar with frightening terms like "KGB" and "the Gulag."
It's main mission was to spread revolution and its form of single party atheistic communism throughout as much of the world as possible. It saw the world's capitalist countries as it's enemies, but it believed that it's main enemy was God Himself. The main religion of the Soviet Union was a form of Socialistic Darwinism.
The Cathedral of Christ the Savior in Moscow during its 1931 demolition.
Ideas and philosophies have consequences. The Soviet Union was the child of Karl Marx's atheistic communism and Charles Darwin's naturalistic evolution. As a matter of fact, it is said that Marx wanted to dedicate his first edition of "Das Capital" to Darwin until he was discouraged by his wife to do so.