How did the Black Death help bring about the end of feudalism in western Europe? What were its key negative and positive effects

The Black Death brought about a decline in feudalism. The significant drop in population because of massive numbers of deaths caused a labor shortage that helped end serfdom. Towns and cities grew. The decline of the guild system and an expansion in manufacturing changed Europe's economy and society.

They concluded that the world circled the sun rather than the other way around. Newton discovered the laws of gravity, motion, & created a new branch of mathematics - calculus. ... The big name for the Enlightenment is Sir Isaac Newton. He discovered gravity, this is the calculus branch of mathematics.

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