Pyu city-states
Beikthano ( ) situated in the irrigated Minbu region (near present-day Taungdwingyi) with direct land access to the well-watered Kyaukse plains to its northeast, is the oldest urban site so far discovered and scientifically excavated site. Its remains—the structures, pottery, artefacts, and human skeletons—date from 200 BCE to 100 CE. Named after the Hindu god Vishnu, the city may be the first capital of a culturally and perhaps even politically uniform state in the history of Burma. It was a large fortified settlement, measuring approximately 300 hectares inside the rectangular (3 km by 1 km) walls. The walls and fortifications along it measured six meters thick, and are radiocarbon dated to a period between 180 BCE and 610 CE. Like most subsequent cities, the main entrance of the walls led to the palace, which faced east. Stupas and monastic buildings have also been excavated within the city walls.
Beikthano
Beikthano is traditionally believed to have been founded some 2,400 years ago by Princess Pan Htwar descended from a still legendary dynasty of Tagaung in Upper Myanmar. The fall of the city is attributed to a mightier king, Duttabaung of Sri Ksetra, who sacked the city, subdued the princess, took her captive and eventually married her. In the present stage of historical research in this country the personalities characterized in the legend are beyond authentic identification. However, the existence of an ancient city called Beikthano (Vishnu City) is testified by the ruins which stand to this day and indicates that the legend may have sprung up from a nucleus of true facts.