Aggressor vs abolitionist

Aggressor

noun
  • a citizen/subject of the fictional Aggressor state 

name
  • a fictional state created by the United States Army for maneuver and military exercise purposes in the 1950's 

abolitionist

noun
  • A person who favors the abolition of any particular institution or practice. 

  • A person who favored or advocated the abolition of slavery. 

adj
  • In favor of the abolition of slavery. 

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