Ding vs Flagstaff

Ding

name
  • A county of Republican China in Hebei Province. 

  • A surname. 

  • A prefecture of imperial China within present-day Hebei under the Northern Wei, Sui, and Tang dynasties, with its seat at Dingzhou. 

Flagstaff

name
  • A city, the county seat of Coconino County, Arizona, United States. 

  • A town in Victoria, Australia. 

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