slavery finally abolished in the southern united states after the end of the american civil war in 1865
segregation laws used in southern states post-reconstruction to segregate blacks from whites
little interest in genuinely freeing black people from the northern political class
civil rights movement in the 1960s wins legal rights for black americans, but more radical groups (BPP, NoI/OAAU, new afrikan/black belt nationalist movement) suppressed
mass incarceration (via the war on drugs – crack cocaine epidemic started by the CIA) used to imprison vast numbers of black people in private prisons
prisoners used for slave labour in private prisons
protests over police brutality (ferguson uprising etc.)