This period of history is marked by great movements that lead to massive changes in Europe , North and South America. Revolutions erupted on all three continents. Empires were disrupted, governments were overthrown, new governments were created, dictators rose and fell, wars were fought and new social structures were created and the world was never the same!
"A revolution (from Late Latin revolutio which means "a turn around") is a significant change that usually occurs in a relatively short period of time. Variously defined revolutions have been happening throughout human history. They vary in terms of numbers of their participants (revolutionaries), means employed by them, duration, motivating ideology and many other aspects. They may result in a socio-political change in the socio-political institutions, or a major change in a culture or economy". Source: Wikipedia