Advent vs Rapture

Advent

name
  • The first or the expected second coming of Christ. 

  • The period or season of the Christian church year between Advent Sunday and Christmas. 

Rapture

name
  • a prophesied sudden removal of Christian believers from the Earth before the Tribulation or simultaneous with the second coming of Jesus Christ 

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