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Wow, I had better look for an evening class this autumn, to get up to speed!
To be a Marxist you just have to subscribe to the theory of the material dialectic, which states that human history runs in phases until someone decides to overthrow the previous lot, at which point a new order is established. As a means of looking at social history it's actually not bad (for example the old agricultural serfdom was overthrown by the industrial revolution, whereupon previously poor men became the owners of the means of production).
Wow, I had better look for an evening class this autumn, to get up to speed!