Engels, Friedrich. The Origin of the Family, Private Property, and the State. London; New York: Penguin Classics, 2010.

Excerpt:

“The following chapters are, in a sense, the execution of a bequest. No less a man than Karl Marx had made it one of his future tasks to present the results of Morgan’s researches in the light of the conclusions of his own — within certain limits, I may say our — materialistic examination of history, and thus to make clear their full significance. For Morgan in his own way had discovered afresh in America the materialistic conception of history discovered by Marx forty years ago, and in his comparison of barbarism and civilization it had led him, in the main points, to the same conclusions as Marx. And just as the professional economists in Germany were for years as busy in plagiarizing Capital as they were persistent in attempting to kill it by silence, so Morgan’s Ancient Society ^[1] received precisely the same treatment from the spokesmen of “prehistoric” science in England. My work can only provide a slight substitute for what my departed friend no longer had the time to do. But I have the critical notes which he made to his extensive extracts from Morgan, and as far as possible I reproduce them here.”

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