6. Ethnic Conflicts Times of multinational empires was over by the beginning of 20th century. New radical ideologies were calling for ethnic cleansing within empires which resulted in large scale genocide. In 1862, Herbert Spencer developed a theory he called “Social Darwinism.” Spencer applied Darwin’s ideas to human societies, and argued that the “fittest” within any given society would survive, while those who were deemed “unfit” eventually would die out. Later, imperialists, communists, and fascists further extended Spencer’s theory and applied it to relationships between people of different races and cultures. As a result, numerous ethnic conflicts took and continue to take place.
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8. These changes, in turn, facilitated the division of the societies into economic classes. Poor working class grew disproportionally. As a result, many workers' movements advocating for better living and working conditions emerged in many countries.
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10. World War I & World War II RACISM was used to justify the killing within nations… RACISM was used to justify wars… Genocide of Armenians in Turkey Russian Ethnic Wars Holocaust
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25. The hundred years after 1900 were the bloodiest in the history of humanity! Significantly larger percentage of the world's population were killed in just the two world wars than in Thirty Years War, Napoleonic Wars, War of the Spanish Succession, Seven Years' War, War of the League of Augsburg, French Revolutionary Wars, Dutch War of Louis XIV, Ottoman War, and War of the Austrian Succession together (e.i., 1.84% vs. 1.58% respectively).
