I notice the small "c", so you already have some ideas. It's a very old idea - the early Christians were communists. The idea of holding property in common is found in many simple societies and has often been tried by small groups on a religious basis. Beware of political propaganda that identifies communism with Stalin's methods. There is no true communist society in the world, since it's a Utopian ideal. Marx and Engels invented Communism - capital "c" - as a later development of Socialism.