apartheid vs xenophobia

apartheid

noun
  • A policy or situation of segregation based on some specified attribute. 

  • Any similar policy of racial separation/segregation and discrimination. 

  • The policy of racial separation used by South Africa from 1948 to 1990. 

verb
  • To impose a policy of segregation of groups of people, especially one based on race. 

xenophobia

noun
  • A fear of aliens. 

  • A strong antipathy or aversion to strangers or foreigners. 

  • A fear of strangers or foreigners. 

  • A hatred of strangers or foreigners. 

How often have the words apartheid and xenophobia occurred in a corpus of books? (source: Google Ngram Viewer )