via word of mouth and ultimately received mainstream use after Jesse Jackson publicly used the term in front of a national audience in 1988. Subsequently, major media outlets adopted its use. Surveys show that the majority of Black Americans have no preference for African American versus Black American, although they have a slight preference for the latter in personal settings and the former in more formal settings. Many African Americans have expressed a preference for the term African American because it was formed in the same way as the terms for the many other ethnic groups currently living in the United States. Some argued further that, because of the historical circumstances surrounding the capture, enslavement, and systematic attempts to de-Africanize Blacks in the United States under chattel slavery, most African Americans are unable to trace their ancestry to any specific African nation; hence, the entire continent serves as a geographic marker. The term African American embraces pan-Africanism as earlier enunciated by prominent African thinkers such as Marcus Garvey, W. E. B. Du Bois, and George Padmore. The term Afro-Usonian, and variations of such, are more rarely used. Official identity Since 1977, in an attempt to keep up with changing social opinion, the United States government has officially classified Black people (revised to Black or African American in 1997) as "having origins in any of the black racial groups of Africa." Other federal offices, such as the U.S. Census Bureau, adhere to the Office of Management and Budget standards on race in their data collection and tabulation efforts. In preparation for the 2010 U.S. Census, a marketing and outreach plan called 2010 Census Integrated Communications Campaign Plan (ICC) recognized and defined African Americans as Black people born in the United States. From the ICC perspective, African Americans are one of three groups of Black people in the United States. The ICC plan was to reach the three groups by acknowledging that each group has its own sense of community that is based on geography and ethnicity. The best way to market the census process toward any of the three groups is to reach them through their own unique communication channels and not treat the entire Black population of the U.S. as though they are all African Americans with a single ethnic and geographical background. The Federal Bureau of Investigation of the U.S. Department of Justice categorizes Black or African American people