Here's an article from Think Progress that cites some evidence that income inequality is at 1920's levels. I don't think anyone would claim those days to be worth repeating. Thirty years of policies favoring those with the highest incomes have taken their toll.
http://thinkprogress.org/economy/2014/03/31/3420998/wealth-inequality/
The following graph is from the article. The whole thing is worth reading.