I want to know the answer to the following question:
What one criteria was used in early times to judge a great power's status?
All the background I'm provided with is that "Early writings on the subject tended to judge states by the realist criterion, as expressed by the historian A. J. P. Taylor when he noted that "The test of a great power is the test of strength for war."". Is that enough to answer the question?
Answer: yes