Dialectical materialism is a term which denotes change over time.

Some believe that the term dialectic refers back to dialect,
dialogue, hence conversation. The conversation which led to the
constitution or the United States was reportedly 15 years.

Wilhelm Hegel, an eighteenth century philosopher was credited
with the shift that occurred in France because of his work, phenomenology
of spirit.

The French Revolution began concurrent with his completion of
the work.

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