Berg vs Strong

Berg

name
  • A municipality of Troms, Norway. 

  • A former duchy and later grand duchy in Westphalia (Western Germany). 

  • A surname from German common in the US, associated with German or Scandinavian ancestry. 

Strong

name
  • A town in Franklin County, Maine. 

  • A census-designated place in Northumberland County, Pennsylvania. 

  • A township and community therein, in Parry Sound District, Ontario, Canada. 

  • A township in Chase County, Kansas. 

  • An unincorporated community in Monroe County, Mississippi. 

  • A minor city in Union County, Arkansas. 

  • A surname. 

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