flagpole vs set down

flagpole

verb
  • Exit a country momentarily and reenter. Usually this is done to satisfy immigration requirements. 

noun
  • A tall pole up which one or more flags may be raised and flown. 

set down

verb
  • To place, especially on the ground or a surface; to cease carrying; to deposit; to allow passengers to alight. 

  • To fix; to establish; to ordain. 

  • To land. 

  • To write. 

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