Hiroshima Castle, sometimes called Carp Castle, was a castle in Hiroshima, Japan that was the home of the daimyō (feudal lord) of the Hiroshima han (fief). The castle was constructed in the 1590s, but was destroyed by the atomic bombing on August 6, 1945. It was rebuilt in 1958, a replica of the original that now serves as a museum of Hiroshima's history before World War II.HistoryMōri Terumoto, one of Toyotomi Hideyoshi's council of Five Elders, built Hiroshima castle between 1589 and 1599. It was located on the delta of the Otagawa river. There was no Hiroshima city or town at the time, and the area was called Gokamura, meaning "five villages". Beginning in 1591, Mōri governed nine provinces from this castle, including much of what is now Shimane, Yamaguchi, Tottori, Okayama and Hiroshima Prefectures.When construction on the castle began, Gokamura was renamed Hiroshima, as a more impressive name was called for. "Hiro" was taken from Ōe no Hiromoto, an ancestor of the Mōri family, and "Shima" was taken from Fukushima Motonaga, who helped Mōri Terumoto choose the castle site. Some accounts state that the name "Hiroshima", meaning "wide island", comes from the existence of several large islands in the delta of the Otagawa, near the castle's site.