According to Batra (1978), the West is currently in the age of acquisitors, also known as Capitalism. This age succeeded the 'age of intellectuals', which gave birth to the Enlightenment and the British parliamentary system. Before that the West went through the 'age of warriors' and the age of discovery. Feudalism, an earlier 'age of acquisitors', reigned before that. It had replaced the 'age of intellectuals', with restrictions on religious thought and also gave birth to the Renaissance period. Before that, Rome ruled the West under the aegis of warriors.
To Sarkar, each age would run its course, with the social motivity going too far, causing much grief to the majority of people (Sarkar, 1967). The situation could unchecked go on for a long time, before things got so bad that a spontaneous revolution and overthrow of the system took place. In fact, as this was the reason for social change, it was clear that no single class of people could remain dominant indefinitely. Social power was destined to pass from one class to next in the prescribed order, or cycle. The 'age of warriors', which brings strict order to society and a return to fundamental values, essentially leads to excessive focus on strong man rule and warfare. It is followed by an 'age of intellectuals', which bring a sense of liberation in the mental sphere but soon replace that freedom with the yoke of newer ideas. Over time this age merges into an 'age of acquisitors', which brings progress in the material sphere, but this is soon replaced by increase physical and mental exploitation. The Servile Wars spelled the doom of the Roman Republic. Labour conflict could be the undoing of Capitalism, according to this theory. And so the cycle moves on its endless round, until the civilisation ceases to exist or is taken over by a superior or more powerful civilisation.