German social theorist
Friedrich Engels collaborated with
Karl Marx on
The Communist Manifesto
in 1848 and on numerous other works.
With the help of Friedrich Engels, Karl Marx wrote
The Communist Manifesto (1848) and
Das Kapital
(1867-1894).
Friedrich Engels, a philosopher, political, historian, journalist, revolutionary, and also a businessman, closest befriended his lifelong colleague.
https://en.wikipedia.org/wiki/Friedri...