It is generally considered that the international Left split into two distinct camps after the Russian Revolution of 1917. The more extreme faction, which sought to achieve radical societal change through revolution, became known as ''communism'', while the less extreme faction, which sought to pursue gradual change through the democratic system, became known as ''social democracy''. | It is generally considered that the international Left split into two distinct camps after the Russian Revolution of 1917. The more extreme faction, which sought to achieve radical societal change through revolution, became known as ''communism'', while the less extreme faction, which sought to pursue gradual change through the democratic system, became known as ''social democracy''. |