What brought about the Renaissance and what did this shift lead to? What is at the core of Humanism?

Renaissance humanism was a revival in the study of classical antiquity, at first in Italy and then spreading across Western Europe in the 14th, 15th, and 16th centuries. ... During the Renaissance period most humanists were religious, so their concern was to "purify and renew Christianity" not to do away with it. Explanation:

Renaissance humanism was a revival in the study of classical antiquity, at first in Italy and then spreading across Western Europe in the 14th, 15th, and 16th centuries. ... During the Renaissance period most humanists were religious, so their concern was to "purify and renew Christianity" not to do away with it.

deists, human beings can know god only via reason and the observation of nature, but not by revelation or by supernatural manifestations

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