Marxist archaeology is an archaeological theory that interprets archaeological information within the framework of Marxism. Although neither Karl Marx nor Friedrich Engels described how archaeology could be understood in a Marxist conception of history, the archaeological theory was developed by Soviet archaeologists in the Soviet Union during the early twentieth century. Marxist archaeology quickly became the dominant archaeological theory within the Soviet Union, and subsequently spread and was adopted by archaeologists in other nations. In particular the United Kingdom, where the theory was propagated by influential archaeologist V. Gordon Childe. With the rise of post-processual archaeology in the 1980s and 1990s, forms of Marxist archaeology were once more popularised amongst the archaeological community. Marxist archaeology has been characterised as having "generally adopted a materialist base and a processual approach whilst emphasising the historical-developmental context of archaeological data." The theory argues that past societies should be examined through Marxist analysis, thereby having a materialistic basis. It holds that societal change comes about through class struggle, and while it may have once held that human societies progress through a series of stages, from primitive communism through slavery, feudalism and then capitalism, it is typically critical of such evolutionary typology today. Marxist archaeologists in general believe that the bipolarism that exists between the processual and post-processual debates is an opposition inherent within knowledge production and is in accord with a dialectical understanding of the world. Many Marxist archaeologists believe that it is this polarization within the anthropological discipline (and all academic disciplines) that fuels the questions that spur progress in archaeological theory and knowledge. This constant interfacing and conflict between the extremes of the two heuristic playing grounds (subjective vs. objective) are believed to result in a continuous reconstruction of the past by scholars. Theory Social evolution The Marxist conception of history—which originated within Engels' The Origin of the Family, Private Property and the State (1884)—holds that society has evolved through a series of progressive stages. The first of these was primitive communism, which Marxist theorists believed was held by classless, hunter-gatherer societies. According to Marxist doctrine, most of these, however, evolved into slave-based societies, then to feudal societies, and then to capitalist societies, which Marxists note is the dominant form today. However, Marxists believe that there are in fact two more social stages for human society to progress through: socialism and then communism. Marxist archaeologists often interpret the archaeological record as displaying