Emperor Hirohito had been the longest-reigning Japanese emperor.
On December 25, 1926, following the death of his father, Hirohito became the 124th emperor of Japan.
At this point, Emperor Hirohito astonished all present by addressing the conference personally, and in breaking the tradition of Imperial silence left his advisers, "struck with awe."
Hirohito was not merely presented as being innocent of any formal acts that might make him culpable to indictment as a war criminal.
Emperor Hirohito was deeply interested in and well-informed about marine biology, and the Imperial Palace contained a laboratory from which the emperor published several papers in the field under his personal name "Hirohito."
Emperor Hirohito settled the dispute in favor of those who wanted peace.
In 1921, Prince Regent Hirohito became the first Japanese crown prince to travel abroad when he took a six month tour of Europe, including the United Kingdom, France, Italy, the Netherlands, and Belgium.
Other historians claim that Emperor Hirohito might have been involved in the planning of Japan's expansionist policies from 1931 to World War II, in closed meetings with his cabinet and military advisers.
Emperor Hirohito angrily assumed a major role in confronting the rebels.