The Great Compromise was a compromise between the New Jersey Plan and the Virginia Plan.
The New Jersey Plan, basically, was for each state to get an equal vote in Congress, while the Virginia Plan, again, briefly, was for each state to get a vote proportional to the amount of citizens living in their state.
The Great Compromise solved the concerns that the large and small states had, of not getting enough power in Congress. They compromised, and created the House of Representatives, following the Virginia Plan, and created the Senate, which is above the House of Representatives, following the New Jersey Plan.
The Persians built a system of well maintained roads which facilitated the rapid transit of military and government personnel. One particular road was called the Royal road that stretched from Sardis to Susa . The Persians established way stations at intervals equipped with fresh horses for the King's messenger.
The Assyrian system of communication was so efficient and effective that a provincial governor anywhere in the empire except Egypt could ask a question and receive an answer within a week.
By the numbers, the WWII was indeed the most deadly war in history as it killed an estimate of 60 to 75 million people. It was the first war that really took multi-continental proportions and affected every country and group of people in the world. It involved around 100 million people and it was marked by mass killings of civilians, like the Holocaust, and atomic bombings. The Soviet Union was the country that suffered the most casualities, civilian and military, losing roughly 15% of its population.
