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
Capital Cities and Tombs of the Ancient Koguryo Kingdom Capital Cities and Tombs of the Ancient Koguryo Kingdom Capital Cities and Tombs of the Ancient Koguryo Kingdom is a UNESCO World Heritage Site which includes a number of archaeological sites in Ji'an, Jilin Province and Huanren, Liaoning Province in Northeast China. Koguryo (Goguryeo, 37 BCE – 668 CE) was an ancient kingdom located in what is now Northeast China and the northern Korean Peninsula. The archaeological sites were collectively designated a cultural World Heritage Site in 2004, qualifying as such under the first five of the six criteria for cultural heritage sites. The designation includes the archaeological remains of