V. I. Lenin
Collected Works
London: Lawrence & Wishart, 1960, Vol. 23, p. 275

"Statistics and Sociology"

In the United States, the Negroes (and also the Mulattos and Indians)
account for only 11.1 per cent. They should be classed as an oppressed
nation, for the equality won in the Civil War of 1861-65 and guaranteed
by the Constitution of the republic was in many respects increasingly
curtailed in the chief Negro areas (the South).

[MC5 adds: Thanks to former SDS leader Noel Ignatin for pointing out
this Lenin quote in the defunct Urgent Tasks magazine.]