emancipation vs incarceration

emancipation

noun
  • The act of setting free from the power of another, as from slavery, subjection, dependence, or controlling influence. 

  • The state of being thus set free; liberation (used, for example, of slaves from bondage, of a person from prejudices, of the mind from superstition, of a nation from tyranny or subjugation). 

incarceration

noun
  • The act of confining, or the state of being confined; imprisonment. 

  • A constriction of the hernial sac, rendering it irreducible, but not great enough to cause strangulation. 

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