break ground vs establish

break ground

verb
  • To initiate a new venture, or to advance beyond previous achievements. 

  • To begin digging in the earth at the start of a new construction, or, originally, for cultivation. 

  • To separate from the ground on takeoff; to become airborne. 

  • To lift off the sea bottom when being weighed. 

establish

verb
  • To form; to found; to institute; to set up in business. 

  • To prove and cause to be accepted as true; to establish a fact; to demonstrate. 

  • To appoint or adopt, as officers, laws, regulations, guidelines, etc.; to enact; to ordain. 

  • To make stable or firm; to confirm. 

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