Thailand (/ ˈ t aɪ l æ n d, ˈ t aɪ l ə n d / TY-land, TY-lənd), historically known as Siam (/ s aɪ ˈ æ m, ˈ s aɪ æ m /) and officially the itdom of Thailand, is a untry in Southeast Asia, located at the centre of Mainland Southeast Asia, spanning 513,120 square kilometres (198,120 sq mi), with a population of almost 70 million. The untry is bordered to the north by Myanmar