During the Hellenistic era, the ancient Greek were the ones that started democracy, which became the base of what the whole world use today. They were the first to play an outdoor drama, which lead the foundation of the movies we watch today. They invented the rules of Geometry, which has made the study of coordinate more easier. The Greek philosophers (Socrates, Plato, Aristotle) were the ones that developed the art of Philosophy to search for wisdom and truth. The Greeks developed the Science in medicine, by giving a Scientific approach in research for drugs to cure disease. They also gave an intelligent approach in the classification of plants, which has helped today's biologist and botanist. They started the Olympics game, which the whole world enjoys participating today.
<span>The assassination of Archduke Franz Ferdinand</span> lead to a direct conflict between the two powers (Austria and Russia) and further lead to the war. Hope that helps.
The question gives you a hint to the answer. If there is a president and vice president from two different political parties, it would make sense to have problems based on different beliefs, because you two don't believe in the same course of action for the country.
