Why does the period 1789-1793 constitute a break?

if your are talking about US History, then, its because the years 1789-1793 was known as the Era of Good Feeling when the democratic and Republican parties got along, and had no disagreements over politics and policies at all.

newton is important because he contributed more to the development of science than any other person in history. isaac newton is remembered as the greatest scientific genius who ever lived. his discoveries about physics, light, and mathematics changed the world.

anti-semitism hope this !