nNot since the late eighteenth and early nineteenth centuries were there revolutions like those in the early twentieth century. Differently, the revolutions of
the early twentieth
century were precursors to later revolutions
that struck after 1945.
nLike those from a century earlier, twentieth-century revolutions had several commonalities: rural discontent, population pressures, high taxes.
nUnlike the previous era, however, twentieth-century revolutions were also caused by the disruptions of the Industrial Revolution and by a Western-centered global market system.