In A Dictionary of Sociology, Gordon Marshall defines rebellion/revolution as "Relatively rare but historically important events in which an entire social and political order is overturned, usually by violent means." He continues to say that while a rebellion is only the replacement of one ruling group by another, a revolution also has the new governing elite making fundamental changes. Both the Chinese Revolution of 1949 and the Cuban Revolution of 1959 completely fit the definition of a full revolution. Of course, while revolutions often originally have the best interests of the people in mind, corruption and po