You might consider decolonization in Africa and The Great Proletarian Revolution in China.
In 1960, France granted independence to thirteen African countries which had previously been French colonies. Areas which had been predominantly French developed a new culture known as Negritude, meaning "blackness." The movement called for the re-institution of traditional African culture and tradition. European thinking had long been that sub-Saharan African people were incapable of self government. The path to self government was painful and slow; but free African nations emerged.
In China, Mao Zedong began the Great Proletarian Revolution as a means of wiping out anything he considered "bourgeois." Thousands of Chinese, including a number of Communist party officials were either beaten, killed, or imprisoned. The end result was the destruction of China's educational system and the reversal of years of stable development. China did not recover for many years.