A short history of the filibuster by historian Kevin Kruse:
Filibuster against civil rights bill, 1874
Filibuster against civil rights bill, 1875
Filibuster against a pension for a black official, 1906
Filibuster against confirmation of a black official, 1909Filibuster against anti-lynching bill, 1921
Filibuster against anti-lynching bill, 1922
Filibuster against anti-lynching bill, 1925
Filibuster against anti-lynching bill, 1938
Filibuster against bill targeting racial discrimination in employment, 1945
Filibuster against Truman’s civil rights proposals, 1948Filibuster against Truman’s civil rights proposals, 1949
Filibuster against Truman’s civil rights proposals, 1950
Filibuster against measures to fight housing discrimination, 1954
Filibuster against civil rights bill, 1957
Filibuster against civil rights bill, 1962
Filibuster against civil rights bill, 1963
Filibuster against civil rights bill, 1964
Filibuster against civil rights bill, 1966
Filibuster against civil rights bill, 1968
Filibuster against bill targeting employment discrimination, 1972
Filibuster against civil rights bill, 1976
Filibuster against civil rights bill, 1976Filibuster against extension of Voting Rights Act, 1982
Filibuster against creation of MLK Day federal holiday, 1983
Filibuster against civil rights bill, 1984
As this thread blows up, I should stress this isn’t remotely an exhaustive list — I did it quickly and I didn’t repeat years in which there were multiple filibusters on different civil rights issues. But it should still give a sense of the “racial history” in the filibuster.