diplomacy vs ignorance

diplomacy

noun
  • Tact and subtle skill in dealing with people so as to avoid or settle hostility. 

  • The art and practice of conducting international relations by negotiating alliances, treaties, agreements etc., bilaterally or multilaterally, between states and sometimes international organizations, or even between polities with varying status, such as those of monarchs and their princely vassals. 

ignorance

noun
  • The condition of being uninformed or uneducated; lack of knowledge or information. 

  • Sins committed through ignorance. 

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