Manifest Destiny

Karl Marx 1818-1883 knew that communism was the biggest illusion people started to have at the dawn of first capitalism era. Look at the first part of Communist Manifesto published in 1848, that says

A spectre is haunting Europe -- the spectre of communism.

He proposed Communism as an ideal social system that had been thought to be found in primitive society in a form 'primitive communist society'. He was an advocate of communim as an ultimate ideal form of social system, but he was not so-called a 'communist' as a political activist. He was a scholar. He was unable to know what would become of the future society. Communism was a thought particularly popular in 20th century.