Black workers faced virulent racism on the job as well. In June of 1943 , white workers halted production to protest the promotion of their African American co-workers. Other factories faced habitual slowdowns by bigoted whites who refused to work alongside African Americans.
not really sure if this is the exact answer you were looking for , I don’t know if 1943 is the exact date . but i Hope this helps !
One of the outgrowths of the civil rights movement of the 1960s was an emphasis on multiculturalism, the belief that the American society should maintain and protect its diversity by laws.