The series chronicles the story of Seiji Chiga, a young man from Japan studying to become an artist on the island of Nantucket, Massachusetts, and his interactions with his new friends, during the 1960s (the Shōwa period in Japan).
On December 13, 1937, the Imperial Japanese Army, following the capture of Nanjing, Japanese soldiers began the Nanjing Massacre (sometimes called the "Rape of Nanking"), which resulted in a massive number of civilian deaths and the large-scale rape of Chinese women, including infants and elderly.
Heian period | Edo period | Meiji period | Kamakura period | Tudor period | Hellenistic period | Warring States period | Sengoku period | interwar period | Taishō period | Muromachi period | Jōmon period | Interwar period | Yamato period | Stuart period | Woodland period | The Best Damn Sports Show Period | Spring and Autumn period | Shōwa period | Second Temple period | Sangam period | Early modern period | early modern period | Vedic period | ''Taishō'' period | Nara period | Migration Period | Helladic period | Classical period | Asuka period |
In 1924, Kenji Miyazawa (Japanese author of children's literature in the early Shōwa period of Japan) created Yukibango, a cat girl, in his first collection of children's stories Chūmon no Ōi Ryōriten (注文の多い料理店, The Restaurant of Many Orders).
From Edo period until Shōwa period, Gokashō produced many merchants; for example, a founder of Wacoal.
The museum's collection includes traditional woodblock prints from the Edo period (1615–1868), as well as a large number of prints from the Meiji period (1868–1912), Taishō period (1912–1926), and the Shōwa period (1926–1989).