Advent vs Assumption

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. 

Assumption

name
  • The Assumption of Mary, the mother of Jesus, into heaven, a Catholic dogma. 

  • A Catholic holy day of obligation (August 15) celebrating the Assumption of Mary. 

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