It is in the nature of arts - including literature - that they shape themselves to social changes, whether these are major upheavals altering the lives of a population in midcourse or slower shifts in the social climate, hardly perceptible to those who live through them. - How a form relates to the life of the age in which it emerges, or re-emerges, is among the central questions a student of the arts must explore.
Patters of Poetry, Introduction: Form and the Age, by Miller Williams