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
Pataliputra capital discovery was first reported in Waddell's book "Report on the excavations at Pataliputra (Patna)". "The capital is currently on display in the Patna Museum. The capital is made of unpolished buff sandstone. It is quite massive, with a length of 49 inches (1.23 meters), and a height of 33.5 inches (0.85 meters). It weighs approximately 1,800 lbs (900 kg). During the excavations it was found next to a thick ancient wall and a brick pavement. The Pataliputra capital is generally dated to the early Maurya Empire period, 3rd century BCE. This would correspond to the reign of Chandragupta, his son