It is by no means absurd to say that Engels invented Marxism. His work did more than Marx's to attract and make converts to the most influential political movement of modern times. He was not only the father of dialectical and historical materialism--the official philosophies of history and science in many communist countries--but was also the first Marxist historian, anthropologist, philosopher, and commentator on early Marx.
In his later years Engels developed his materialist interpretation of history, his chief intellectual legacy, which has had revolutionary effects on the arts and social sciences. Terrell Carver traces its source and its effect on the development of Marxist theory and practice, assesses its utility, and discusses the difficulties which Marxists have encountered in defending it.
Engel-ism is recognised as a philosophy in Oxford and many other Universities. It is just that most of Engels ideas were that of Karl Marxs, Engel differed from Marx in one way by favouring Darwinism more.
Engels parents provided money for him when he worked in mills in Manchester, England. Engels then gave a lot of the money from his parents to Marx to help produce work more easily.
The Communist manifesto as we all know is an expanded version of The principles of Communism -and the author was Engels!, not Marx and Engels.
A good modern book on Engels philosophy only, is this one:
http://www.amazon.co.uk/Engels-Very-Sho ... 998&sr=8-1