Sorry the answer took so long -laughs- but it only created a social hierarchy that stood for decades.
Answer:
The war started mainly because of four aspects: Militarism, Alliances, Imperialism and Nationalism. This is because big armies become potential threats to other countries, other countries started forcing alliances in order to secure land.
Explanation:
Hope this helps! :)
Industrial revolution contributed i imperialism in a number ways.
The Enlightenment was a period in history named not for its battles, but for its ideas. Still, the intellectual and cultural changes it introduced certainly contributed to many political revolutions around the world. Created by World History Project.
Most of Russia consists of two plains (the East European Plain and the West Siberian Plain), three lowlands (the North Siberian, the Central Yakutian and the East Siberian), two plateaus (the Central Siberian Plateau and the Lena Plateau), and two systems of mountainous areas (the East Siberian Mountains in far northeastern Siberia and the South Siberian Mountains along the southern border).