How did Isaac Newton uncover his theories?

Answer:
He didnt "uncover" them as if he was going on a search and digging them up. He thought of them. a theory is like a hypothesis. its an educated guess. Its a guess on the way of how things work or why something is a certain way. So after his reasearch, and discoveries, he came up with these theories. and as we know today, pretty much all of his theories presumed to be correct.
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