Three Stelae of Kōzuke
The Three Stelae of Kōzuke are three ancient stelae in the former Kōzuke Province of Japan, located in what is now the city of Takasaki, Gunma Prefecture, in the Kantō region. Together, they were inscribed in the UNESCO Memory of the World Register as "Three Cherished Stelae of Ancient Kozuke" in 2017.
These are the oldest of the 18 known extant Japanese stelae. The Yamanoue Stele is from 681 AD, the Tago Stele from 711 AD, and the Kanaizawa Stele from 726 AD. The Yamanoue Stele is the oldest surviving example of Chinese characters using Japanese grammar.