The alliances system meant that a local conflict could easily result into an intimidating global one. The overall cause of World War was the assassination of Archduke Franz Ferdinand. Nationalism was a great cause of World War one because of countries being greedy and not negotiating.
Your welcome I don't know if that helped. But yea.
Answer:
The major types of societies historically have been hunting-and-gathering, horticultural, pastoral, agricultural, industrial, and postindustrial. As societies developed and grew larger, they became more unequal in terms of gender and wealth and also more competitive and even warlike with other societies.
Answer:
The Crédit Mobilier scandal of 1872-1873 damaged the careers of several Gilded Age politicians. Major stockholders in the Union Pacific Railroad formed a company, the Crédit Mobilier of America, and gave it contracts to build the railroad. They sold or gave shares in this construction to influential congressmen.