act of God vs curiosity

act of God

noun
  • Used other than figuratively or idiomatically: see act, of, God. 

  • An unforeseen occurrence beyond one's control, such as a natural disaster. 

curiosity

noun
  • A unique or extraordinary object which arouses interest. 

  • Inquisitiveness; the tendency to ask and learn about things by asking questions, investigating, or exploring. 

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