archaeology vs rubble

archaeology

noun
  • The study of the past by excavation and analysis of its material remains 

  • the actual excavation, examination, analysis and interpretation. 

  • the actual remains together with their location in the stratigraphy. 

  • the academic subject; in the USA: one of the four sub-disciplines of anthropology. 

rubble

noun
  • The broken remains of an object, usually rock or masonry. 

  • The whole of the bran of wheat before it is sorted into pollard, bran, etc.. 

  • A mass or stratum of fragments of rock lying under the alluvium and derived from the neighbouring rock. 

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