I want to know the answer to the following question:
In what year are or racial categories first revised for the 2000 U.S. Census?
All the background I'm provided with is that "The Interagency Committee agreed, stating that "race" and "ethnicity" were not sufficiently defined and "that many respondents conceptualize 'race' and 'ethnicity' as one in the same  [sic] underscor[ing] the need to consolidate these terms into one category, using a term that is more meaningful to the American people."". Is that enough to answer the question?