backwoods vs common land

backwoods

noun
  • A remote or sparsely inhabited region, especially in North America; away from big towns and from the influence of modern life. 

  • Partly or wholly uncleared forest, especially in North America. 

adj
  • Rough, uncouth, coarse, or crude in social matters. 

  • Pertaining to the backwoods. 

common land

noun
  • an area of land in the United Kingdom or Ireland that is open to the public at all times and until the 18th century would have been land that was free for anybody to graze their animals on (often shortened to common). 

  • collectively, all the common land in one of those two countries. 

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