Context: Lord Castlereagh, the British Foreign Secretary, first used the term in its diplomatic context, in a letter sent on February 13, 1814: "It affords me great satisfaction to acquaint you that there is every prospect of the Congress terminating with a general accord and Guarantee between the Great powers of Europe, with a determination to support the arrangement agreed upon, and to turn the general influence and if necessary the general arms against the Power that shall first attempt to disturb the Continental peace."

Question: When did Lord Castlereagh first use the term Great Powers?
Answer: in a letter sent on February 13, 1814

Question: What position did Lord Castlereagh hold?
Answer: British Foreign Secretary

Question: What did Castlereagh determine as the last resort of great power's influence?
Answer: if necessary the general arms against the Power that shall first attempt to disturb the Continental peace

Question: What member of Congress first used the term Great Powers?
Answer: Unanswerable

Question: When did Lord Castleereagh first use the term Continental peace?
Answer: Unanswerable

Question: What did the Great powers of Europe send in 1814?
Answer: Unanswerable

Question: What general influence was agreed upon in the letter sent in 1814?
Answer: Unanswerable

Question: What is the Great power turning against in the letter sent in 1814?
Answer: Unanswerable