IMO it was two eras - 1902-1920, 1933-1961.
The first one in that case Our lecturer went on a rant about the New Deal being it's own piece of history etc
Whoops, I read this as when was! Sorry! (damned dyslexia)
I would say progressive in many aspects, but not true progressivism (in the real sense). Much of the ideas like eugenics, creationism, and in afterthought, prohibition were all extreme moronic ideas proposed by many "progressives" of the time. Yet, the advances in Women's Sufferage, Economic Securities, and even African American advances (
Black Georgia in the Progressive Era - Great Read) were great strides. Much of the "Progressive Era" can be attributed to the rise of (mostly rural) populism stemming much from WJB.
I look at it as less progressive and more of a Populism Era ruled by less ignorant white men.