Final answer:
The Japanese system in which the emperor remained ruler in name only and the shogun exercised the actual power was known as the Tokugawa shogunate. This system lasted from 1185 to 1868 and brought stability to Japan through strict control.
Step-by-step explanation:
The Japanese system in which the emperor remained ruler in name only and the shogun exercised the actual power is known as the Tokugawa shogunate. This system was in place from 1185 to 1868, during which the shogun, a military leader, held the authority while the emperor's role was largely ceremonial. The shogunate was established by Minamoto Yoritomo, who became the first shogun in 1192. The Tokugawa shogunate brought stability and peace to Japan through strict control and isolationist policies.