Why are the figures of the new culture called humanists, and the time when the new culture arose

Why are the figures of the new culture called humanists, and the time when the new culture arose and developed – the Renaissance?

They were called humanists because they exalted a person and his activities. Renaissance was called a new culture due to the fact that it revived the ancient culture of antiquity. Thus, at that time there were more changes in the social structure and culture. The order of the Middle Ages and religious fanaticism faded into the background. Together with outstanding thinkers and artists, this caused a surge in the development of culture, science, politics and other sectors of society.