• October 1, 1898 - Both Fukatsu and Yasuna District were merged to create Fukayasu District (1 town, 33 villages). • April 1, 1913 - The villages of Nogami and Miyoshi were merged into the town of Fukuyama (1 town, 31 villages). • July 1, 1916 - The town of Fukuyama was elevated to city status to become the city of
Fukuyama (31 villages). • March 1, 1929 - The villages of Kawakita and Kawaminami were merged to create the town of
Kannabe (1 town, 29 villages). • January 1, 1933 - The villages of Kawaguchi, Kinoshō, Teshiro, Narazu, Fukatsu, Honjō and Yoshizu were merged into the city of Fukuyama (1 town, 22 village). • October 1, 1938 - The villages of Kamiiwanari, Shimoiwanari, Nakatsuhara, and Moriwake were merged to create the village of Gyōkō (1 town, 19 villages, the village was named after the imperial visit of the emperor in November 1930) • February 11, 1941 - The villages of Kamitakeda, Shimotakeda and Yahiro were merged to create the village of Takehiro (竹尋村) (1 town, 17 villages). • October 1, 1941 - The villages of Shimokamo and Hōjōji were merged to create the village of Kahō (1 town, 16 villages). • March 31, 1954 - The town of Kannabe absorbed the villages of Takehiro, Chūjō, Michinoue, Mino and Yuda to create the town of Kannabe (1 town, 11 villages). • March 31, 1955 - The villages of Kamo absorbed the villages of Hirose and Yamano to create the town of
Kamo (2 towns, 8 villages). • March 31, 1955 - The villages of Oōtsuno, Kasuga and Tsubou were merged to create the town of
Fukayasu (3 towns, 5 villages). • September 30, 1956 - The villages of Ichi, Senda, Hikino and Gyōkō were merged into the city of Fukuyama (3 towns, 1 village). • September 30, 1956 - The village of Kahō was dissolved and split into the town of Kamo (the locality of Shimokamo and parts of the locality of Torigoe in Hōjōji), and the town of
Ekiya (from
Ashina District) (remaining parts of the locality of Hōjōji) (respectively) (3 towns). • January 1, 1962 - The town of Fukayasu was merged into the city of Fukuyama (2 towns). • February 1, 1975 - The town of Kamo was merged into the city of Fukuyama (1 town). :※At the same time, the town of Ekiya (from Ashina District) was also merged into the city of Fukuyama. • March 1, 2006 - The town of
Kannabe was merged into the expanded city of Fukuyama. Fukayasu District was dissolved as a result of this merger. == References ==