What were the circumstances that led japan to become an "advancing civilization? "

Series of circumstances led Japan to become an "advancing civilization".

Explanation:

Japan's victory over Russia proved that Japan was a strong competitor. This step opened the doors for Japan towards civilization. Japan took the south half of Sakhalin and Liaotung Peninsula after won over Russia. They gradually started capturing sections of China, beginning with Manchuria. Thus, by war, Japan had controlled more than 1,000,000 square miles. Then, they adopted life of western civilizations very quickly. Thus, they became the leading countries and advancing civilizations in the world.

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.

good question. i'll be looking into that. (this is a joke sir)