After 1869, the northern Japanese island was known as
Hokkaido;[1] and regional administrative subdivisions were identified, including Chishima Province.[2]
1869 Japan occupied Kunashir.
August 15, 1869 Chishima Province created with 5
districts.
Etorofu (択捉郡), around
Iturup island (occupied and administered by Russia)
Furebetsu (振別郡) (dissolved April, 1923 when its villages merged with several villages in Shana and Etorofu districts to form the village of Rubetsu in Etorofu)