“The Prehistoric Era” refers to the period approximately 2,000-3,000 years. Ban Wang Hai archaeological site was among the first ancient communities that have been found to the east of Kuang river in the area of Wiang Yong Subdistrict, Mueang Lamphun district. Inhabitants of Ban Wang Hai were the first people who lived in this area before being influenced by the new form of culture that expanded and blended with the existing civilisation.