humanity vs mankind

humanity

noun
  • Humankind; human beings as a group. 

  • Any academic subject belonging to the humanities. 

  • The human condition or nature. 

  • The quality of being benevolent; humane traits of character; humane qualities or aspects. 

mankind

noun
  • The human race in its entirety. 

  • Men collectively, as opposed to all women. 

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