Hesperian vs occidental

Hesperian

adj
  • Of or relating to the land where the sun sets; western 

  • Of or relating to the Hesperides nymphs 

  • of or relating to the Martian geological period between Noachian and Amazonian 

name
  • An inhabitant of the western lands 

  • The Hesperian geological time period of Mars 

occidental

adj
  • Of, pertaining to, or situated in, the occident, or west; western. 

  • Of a gem or precious stone: of inferior value or quality. 

noun
  • A Western Christian of the Latin rite 

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