corporation vs organization

corporation

noun
  • A body corporate, created by law or under authority of law, having a continuous existence independent of the existences of its members, and powers and liabilities distinct from those of its members. 

  • The municipal governing body of a borough or city. 

  • In Fascist Italy, a joint association of employers' and workers' representatives. 

organization

noun
  • A group of people or other legal entities with an explicit purpose and written rules. 

  • A major league club and all its farm teams. 

  • The quality of being organized. 

  • A group of people consciously cooperating. 

  • The way in which something is organized, such as a book or an article. 

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