His father, Crown Prince Akishino, was the last male to reach adulthood in the family, in 1985. Hisahito is the youngest of the 17-member all-adult imperial family, which currently has only four men.

Two videos and about 160 pictures on display show the devastation from the nuclear attack, which took place on Aug. 6, 1945, ...

Hisahito, who is set to become the emperor one day, is the nephew of Japanese Emperor Naruhito. His father, Crown Prince Akishino, was the last male to reach adulthood in the family, in 1985.

FILE - Japan's Prince Hisahito, center, accompanied by his father Prince Akishino and mother Princess Kiko arrives at Ochanomizu University-affiliated kindergarten for his graduation ceremony in Tokyo ...

His father, Crown Prince Akishino, was the last to do so, in 1985. Hisahito is the youngest of the 17-member all-adult imperial family, which currently has only four men.