Since 1967, the U.S. Census Bureau has collected excellent comparative statistics on black vs. white income in the U.S.
Unfortunately, I just can't find anything even remotely comparable for the years *before* 1967 - i.e., for the years before the "civil rights movement" and "affirmative action."
Can anybody help me out, here? Do any such statistics exist?
What I'm trying to figure out is this: just exactly how well have said "civil rights movement" and said "affirmative action" worked out for African-Americans, on this (admittedly crude) measure?