2. In 1847, the of society, the social existing previous to recorded history, all but unknown. Since then, August (1792-1866) discovered common ownership of land in Russia, Georg Ludwig Maurer proved it to be the social foundation from which all Teutonic races started in history, and, by and by, village communities were found to be, or to have been, the primitive form of society everywhere from India to Ireland. The inner of this primitive communistic society was laid bare, in its typical form, by Lewis Henry Morgan's (1818-1881) crowning discovery of the true nature of the gens and its relation to the tribe. With the dissolution of the primeval communities, society begins to be differentiated into separate and finally antagonistic classes. I have attempted to retrace this dissolution in The Origin of the Family, Private Property, and the State, second edition, Stuttgart, 1886. [Engels, 1888 English Edition and 1890 German Edition (with the last sentence omitted)]