Susono became a city on January 1 , 1971 .
On September 30 , 1956 , Fukara Village merged with Susono Town , and on September 1 , 1957 , Tomioka and Suyama Villages also merged .
Susono Town became a city on January 1 , 1971 .
On September 30 , 1956 , Fukara Village merged with Susono Town , and on September 1 , 1957 , Tomioka and Suyama Villages also merged .