anchor.diff:  3,Lonnie Johnson,(born 1949),toy inventor
   3,Oprah Winfrey,(born 1954),talk show host & producer
   3,Mark Dean,(born 1957),IBM inventor
  -3,Kunle Olukotun,(born 1960s),
  +3,Robert F. Smith (born 1962),investor
  +3,Kunle Olukotun,(born mid-1960s),computing pioneer
   3,Sean Combs,(born 1969),hip-hop entrepreneur
  -    Robert F. Smith
   
   
   
  
positive.code: 2,C. L. R. James,(1901-1989),Marxist theorist
  2,Charles Drew,(1904-1950),blood transfusion pioneer
  2,Vivien Thomas,(1910-1985),surgical technician
  2,W. Arthur Lewis,(1915-1991),economist
  2,David Blackwell,(1919-2010),statistician
  2,Jane C. Wright,(1919-2013),oncologist
  2,Frantz Fanon,(1925-1961),colonization thinker
  2,Samuel L. Kountz,(1930-1981),surgeon
  2,Thomas Sowell,(born 1930),economist & social commentator
  2,Patricia Bath,(born 1942),ophthalmologist
  2,Henry Louis Gates Jr.,(born 1950),literary critic
  2,Kwame Anthony Appiah,(born 1954),philosopher
  2,Neil deGrasse Tyson,(born 1958),astrophysicist & science communicator
      Kenneth & Mamie Clark
      John Hope Franklin
  
  3,Lewis Howard Latimer,(1848-1928),inventor
  3,Booker T. Washington,(1856-1915),community leader
  3,Madam C.J. Walker,(1867-1919),hair care entrepreneur
  
negative.code: 4,Langston Hughes,(1902-1967),poet
  4,Romare Bearden,(1911-1988),collage artist
  4,Gordon Parks,(1912-2006),photographer writer director
  4,Ralph Ellison,(1913-1994),author
  4,Aimé Césaire,(1913-2008),poet
  4,Maya Angelou,(1928-2014),poet & memoirist
  4,Chinua Achebe,(born 1930),author
  4,Derek Walcott,(1930-2017),poet & playwright
  4,Toni Morrison,(born 1931),author
  4,Wole Soyinka,(born 1934),author
  4,Holland–Dozier–Holland,(born 1939/41/41),songwriters
  4,August Wilson,(1945-2005),playwright
  4,Octavia Butler,(1947-2006),sci-fi author
  4,Jean-Michel Basquiat,(1960-1988),graffiti artist
  
  
  
  