Social Darwinism describes the various theories that emerged in Western Europe and North America in the 1870s which applied biological concepts of natural selection and survival of the fittest to sociology, economics, and politics. Social Darwinism posits that the strong see their wealth and power increase while the weak see their wealth and power decrease. Different social Darwinist groups have differing views about which groups of people are considered to be the strong and which groups of people are considered to be the weak, and they also hold different opinions about the precise mechanisms that should be used to reward strength and punish weakness. Many such views stress competition between individuals in laissez-faire capitalism, while others were used in support of authoritarianism, eugenics, racism, imperialism, fascism, Nazism, and struggle between national or racial groups.
Alexander the Great ruled from 331 - 323 BC, the Han Dynasty started in 206 BC and ended in 220 AD, and finally the Mongol empire began in 1206 AD and ended in 1368 AD.
The Schlieffen Plan. Germany had been preparing for war long before 1914. In fact,Germany had started drawing up a plan for war - the Schlieffen Plan - in 1897. It took nine years to finalise, but it was based on the theory that Germany would be at war with France and Russia at the same time.