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
The Trigan Empire existed in history. Chief among these was the Trigan Empire, apparently modelled on Ancient Greece and the Roman Empire. This similarity even extended to Trigan City, the capital being built on five hills, in a similar fashion to the seven hills of Rome. The Trigans flew atmosphere craft. The Trigans' clothing was similar to that of the Romans, with many of the populace dressed in toga-like garments, or in the case of the soldiery, in Greek or Roman-style armour. A similar likeness could be drawn with Hericon, the chief rival in power to the Trigans, whose appearance seemed to mirror