Karatsu, Saga
Due to its proximity to mainland Asia, Karatsu has long been known as a stopover to Korea and China.Under ritsuryō, the current city area was part of the Hizen Province. In 1591, on the coast of the northern part of the city (formerly the town of Chinzei), Nagoya Castle was constructed. The following year, it became the location from which the Imjin War was launched by Toyotomi Hideyoshi. In the middle of 1593, Terasawa Hirotaka created the Karatsu domain and began governing it. In 1602, replacing Nagoya Castle, Karatsu Castle was constructed in what is now the heart of Karatsu. The tower of Karatsu Castle was built in 1966 .
Nagoya Castle
In March 1872 (Meiji 5), the male carp was exhibited at Japan's first exposition in Yushima. It was later displayed at regional expositions held in Ishikawa, Oita, Ehime, and Nagoya. The female dolphin was exhibited at the World Exposition in Vienna in 1873. Later, when it was decided to preserve the donjon, a movement to return the carps was initiated. In Meiji 11 (1878), the golden carps were returned to Nagoya and restored to their original position in February of the following year.