Portal:Japan/Anniversaries/September/September 23

September 23:

Events
 * 1889 - Nintendo Koppai (Later Nintendo Company, Limited) founded by Fusajiro Yamauchi to produce and market the playing card game Hanafuda.
 * 1942 - First day of the September Matanikau action on Guadalcanal as United States Marine Corps forces attack Imperial Japanese Army units along the Matanikau River.

Births
 * 1740 - Empress Go-Sakuramachi (d. 1813)
 * 1771 - Emperor Kōkaku (d. 1840)
 * 1964 - Koshi Inaba, singer-songwriter
 * 1971 - Kenji Matsuda, actor
 * 1974 - Harumi Inoue, swimmer and actress
 * 1980 - Syu, guitarist
 * 1985 - Maki Goto, singer-songwriter and actress
 * 1988 - Ryo Kimura, actor

Deaths
 * 1573 - Azai Hisamasa (b. 1524), warlord