rebirth vs revitalization

rebirth

noun
  • Revival, reinvigoration. 

  • Reincarnation; new birth subsequent to one's first. 

  • Spiritual renewal. 

verb
  • To cause to be born again or spiritually renewed. 

revitalization

noun
  • The process of revitalizing. 

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