The computer mouse, invented by Ken Kutaragi in the 1980s, has become a standard input device for personal computers worldwide.

Japan's isolationist policy during the Edo period limited contact with the outside world but allowed for the development of unique cultural practices and traditions.

The Kamakura period, which lasted from the 12th to the 14th century, was a time of political upheaval and marked the rise of the shogunate.