Timeline of the Assyrian Empire in Ashur began deteriorating, Tukulti-Ninurta built a new capital city; Kar-Tukulti-Ninurta. He stretched the Assyrian Empire further south than before, conquering Dilmun, a "pre-Arab" civilisation of the Arabian Peninsula that encompassed modern Bahrain, Kuwait, Qatar and the coastal regions of the Eastern Province of Saudi Arabia. However, Tukulti-Ninurta's sons rebelled and besieged the ageing king in his capital. He was murdered and then succeeded by Ashur-nadin-apli (1206–1203 BC) who left the running of his empire to Assyrian regional governors such as Adad-bēl-gabbe. Another unstable period for Assyria followed, it was riven by periods of internal strife and the new king
Acheron Empire Acheron Empire The Acheron Empire is a historical kingdom found within the world of Robert E. Howard's Hyborian Age. It was first mentioned in the Conan the Barbarian novel "The Hour of the Dragon", as an ancient realm ruled by sorcerers which collapsed before the timespan of the Conan stories. The name comes from Acheron, a river of the underworld in Greek mythology. Acheron was first mentioned in Robert E. Howard's novel "The Hour of the Dragon", as an ancient empire in the history of the setting. It was not mentioned in his earlier essay "The Hyborian Age", which outlined