In Renaissance Italy, it was a period of transition from feudalism to capitalism so was an upheaval and of people becoming used to new social relations with no longer the stable security of the feudal system and with much more freedom and mobility of the workforce. The new capitalist system affected everything and gave impetus to the scientific revolution and the development of the heliocentric dynamic universe as opposed to the geocentric stable one of the feudal society. So I think that at least in this case the foment of the transition gave rise to the creativity and was not a period of peace and calm necessarily.