council of war vs symposium

council of war

noun
  • A meeting convened to address a crisis or to make a plan of attack. 

  • A committee of high-ranking military officers convened to consult on urgent matters in wartime. 

symposium

noun
  • A conference or other meeting for discussion of a topic, especially one in which the participants make presentations. 

  • A drinking party in Ancient Greece, especially one with intellectual discussion. 

  • A collection of essays, articles or papers on a particular subject by a number of contributors. 

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