Income Inequality Not Unprecedented, Returning to 1920's and 1930's Levels

From George Mason University's Library of Econ and Liberty:

With their longer historical perspective, SOI statistics also show that inequality in the 1920s and 1930s was as high as it is today. Beginning in 1938, the income share of the top one-tenth of households fell from 43 percent to about 32 percent, where it remained until the deep blue-collar recession of the early 1980s. At that point, inequality began its return to the levels of the 1920s and early 1930s.

SOI stands for U.S. Treasury's Statistics of Income