It's not really quackery, but it's overly simplified and ignores the essence of the private property. It's interesting that Marx failed to fully understand the

It's not really quackery, but it's overly simplified and ignores the essence of the private property. It's interesting that Marx failed to fully understand the role of private property even according to his own materialistic approach to history. Can you tell from Marxist point of view, what is the purpose of private property? Why did it appear in the history? Which problem did it solve?