liberation vs persecution

liberation

noun
  • The act of liberating or the state of being liberated. 

  • The achievement of equal rights and status. 

persecution

noun
  • The act of persecuting. 

  • A program or campaign to subjugate or eliminate a specific group of people, often based on race, religion, sexuality, or social beliefs. 

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