Sidoktaya
Sidoktaya is one of the oldest ancient towns in Myanmar. It is established by Prince Yazakumar (a. Min Zaya Khittaya or Min Thiri Khittaya) in Year 460 (Myanmar Era) (about 1098 A.D.). Now it is over 900 years of age. there are many archaeological places including Si-kyek-taung Pagoda, Aung-kyar Thiri Pagoda, and Sutaungpyi Pagoda. The ancient city wall had been found buried in some places.
Prehistory of Myanmar
The Burmans who had come down with the early 9th Nanzhao raids of the Pyu states remained in Upper Burma. (Trickles of Burman migrations may have begun as early as the 7th century.) Like that of the Pyu, the original home of Burmans prior to Yunnan is believed to be present-day Qinghai and Gansu provinces. After the Nanzhao attacks had greatly weakened the Pyu city-states, large numbers of Burman warriors and their families entered the Pyu realm in the 830s and 840s and settled at the confluence of the Irrawaddy and Chindwin rivers, perhaps to help Nanzhao pacify the surrounding countryside. Over the next two hundred years, the small principality gradually grew to include its immediate surrounding areas— to about 200 miles north to south and 80 miles from east to west by Anawrahta's accession in 1044. Historically verifiable Burmese history begins with Anawrahta's accession.