The concept which best relates to the ideas of Baron de Montesquieu is
- separation of powers
- checks and balances
I think it's the telephone because it allows people to communicate better and customers or workers don't have to walk up to everyone and disturb them. You may elaborate more on this with your own opinion
After world war 1 the United States wanted to isolate themselves from things like that because of how bad the war was. They went as far as to not join the league of nations that their President made himself with other presidents. After the Korean War, they decided to not isolate themselves and meddle as much as possible to prevent the spread of communism because it would strengthen the Soviet Union who was the main enemy.
The correct answer is - preserved the union.
The Civil War in the United States was a long and bloody conflict. It was between the North and the South, the two halves that had totally different policies and ambitions for the future. Despite the war being terrible and with lot of people who lost their lives, as all wars, something good came out of it too. The big positive of the Civil War was that it actually managed to preserve the unity between the states, thus creating the mighty United States of America, which eventually became the biggest power house on the planet.
After Britain won the Seven Years' War and gained land in North America, it issued the Royal Proclamation of 1763, which prohibited American colonists from settling west of Appalachia. The Treaty of Paris, which marked the end of the French and Indian War, granted Britain a great deal of valuable North American land.
Also sub to Stariceie E on yt plzz
