Why is the book ‘The Communist Manifesto’ so famous?

Why is the book ‘The Communist Manifesto’ so famous?

The Communist Manifesto was first published on February 21, 1848, and is one of the world’s most influential political documents. It was written by communist theorists Frederich Engels and Karl Marx. However, Engels himself has said that the Manifesto was ‘essentially Marx’s work’ and that ‘the basic though… belongs solely and exclusively to Marx’

The manifesto suggested a course of action for a working class revolution in Europe to overthrow the ruling class. Its goal was to eventually bring about a classless society. The Communist Manifesto was to become of the most widely read and discussed documents in the 20th century