How it affected the 20th century :
It influenced the way that people think about such important social issues as race, gender, and class. It played an important role in the political process, particularly in shaping national election campaigns. TV programs and commercials have also been mentioned as major factors contributing to increased American materialism (a view that places more value on acquiring material possessions than on developing in other ways). Finally, television helped to spread American culture around the world.
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to settle a trade dispute with another country
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In my opinion
World War I is the climax of all the contradictions that exist in European countries. Before the outbreak of World War I the situation in the European region had heated up, there had been competition between countries in Europe. At that time Europe was divided into two rival camps. The existence of a Triple Agreement from France et al and the Triple Alliance from Germany et al. With the breakup of two camps, from 1908, several crises had tested competing alliances, pushing Europe closer to the War. Specifically, the Bosnian event involved Russia, Austria-Hungary, and Serbia. This incident contained a lot of material which eventually waged a war in 1914.
Are you wanting translation?
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World war two began with the invasion of Poland by Hitler
I think not very sure