bravery vs perseverance

bravery

noun
  • Being brave, courageousness. 

  • A brave act. 

  • Splendor, magnificence. 

perseverance

noun
  • Continuing in a course of action without regard to discouragement, opposition or previous failure. 

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