Babel vs agitation

Babel

noun
  • A confused mixture of sounds and voices, especially in different languages. 

  • A place or scene of noise and confusion. 

  • A tall, looming structure. 

name
  • The city and tower in the land of Shinar where the confusion of languages took place, according to the Bible. 

agitation

noun
  • A disturbance of personal tranquillity; disturbance of someone's peace of mind. 

  • Excitement of public feeling by discussion, appeals, etc. 

  • The act of agitating, or the state of being agitated; the state of being disrupted with violence, or with irregular action; commotion. 

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