Because they have new things and better jobs now
The eastern and western deserts prevented invaders from the east and west. The deserts were a hard climate to travel through. Therefore, nobody could walk across to conquer Egypt. Furthermore, the cataracts in the Nile to the south protected the Egyptians from lands below them. So the answer would be that The Nile protected the Egyptians from invasion.
The American Revolution was principally caused by colonial opposition to British attempts to impose greater control over the colonies and to make them repay the crown for its defense of them during the French and Indian War (1754–63).
They won the war which enabled them to become a republican democracy instead of a monarchy. They freed themselves from central authority and wanted to have a democratic federal government to rule made out of people and not just nobles who claimed that they had right to rule.
Answer: The map of Europe and the distribution of power in 1871 was very different from that devised at Vienna in 1814–15.
Explanation: