Answer:
Because...
Explanation:
The period after the end of the Second World War saw the emergence of the United States as the pre-eminent military and economic power in the world. Every part of the world came under the purview of US interests. With the collapse of the Soviet Union, the US became the only superpower in the world.
It was B. Eric the Red who was the Viking explorer who sailed west from Iceland and set up a colony on a large land mass that he called Greenland.
I certainly won't write your essay for you but I'd recommend doing your paper on Alexander III of Macedon aka Alexander the Great as he was a very influential and interesting figure in Greek history. Although king of ancient Macedonia for less than 13 years, Alexander the Great changed the course of history. One of the world's greatest military generals, he created a vast empire that stretched from Macedonia to Egypt and from Greece to part of India. This allowed for Hellenistic culture to become widespread.
General McClellan began as youthful cadet at West Point, where he in the end graduated second in his class. He battled respectably in the Mexican War and showed military designing at West Point. Strangely, he was to meet his future President and Commander in Chief, Abraham Lincoln, when he turned into the Head of Engineering at Illinois Central Railroad in 1857, after he surrendered from the administration. At the time, Lincoln was held by the railroad as its main legal advisor.
Each branch can check each other to prevent one from gaining too much power (checks and balances) :)