Publisher's note on the " Origin of family, private property and State" by Engels.

The book was published in 1884 in two months, from March to May. it is only Engels

who describes growth of human family from the point of historical materialism. He unfolded the cause of inequality of the females in the present capitalistic economy. The salvation of female depends on the abolition of capitalistic production systems.
Unless the equality of economic status is ensured between the two sexes the relation of mutual respect and true love will not be established. this book is on the same footing as the books "  The Eighteenth Brumaire of Louis Bonaparte. Karl Marx 1852 ", "Civil War in France" written by Marx and "Anti Duhring" written by himself. 
The origin of State and its problems were the backbones of his essays.
How the changes of human relationships depends on the changes of productive forces were the points of his discoveries. The only way of relief from this capitalistic exploitation is to establish the highest form of democracy - Proletarian Dictatorship.