Mark N. Katz identified six forms of revolution; • rural revolution • urban revolution • Coup d'état, e.g.
Egypt, 1952 • revolution from above, e.g. Mao's
Great Leap Forward of 1958 • revolution from without, e.g. the allied invasions of
Italy, 1944 and
Germany, 1945. • revolution by osmosis, e.g. the gradual
Islamization of several countries. These categories are not mutually exclusive; the
Russian revolution of 1917 began with urban revolution to depose the Czar, followed by rural revolution, followed by the
Bolshevik coup in November. Katz also cross-classified revolutions as follows; • Central; countries, usually
Great powers, which play a leading role in a Revolutionary wave; e.g. the
USSR,
Nazi Germany,
Iran since 1979. • Aspiring revolutions, which follow the Central revolution • subordinate or puppet revolutions • rival revolutions, e.g.
communist Yugoslavia, and China after 1969 Central and subordinate revolutions may support each other militarily, as for example the USSR,
Cuba,
Angola,
Ethiopia,
Nicaragua and other Marxist regimes did in the 1970s and 1980s. A further dimension to Katz's typology is that revolutions are either against (anti-
monarchy, anti-
dictatorial,
anti-capitalist,
anti-communist, anti-
democratic) or
for (pro-
fascism, pro-
liberalism, pro-
communism, pro-
nationalism etc.). In the latter cases, a transition period is often necessary to decide on the direction taken. ==Periodisation==