Mukdahan capital of Mukdahan province, became Thailand's 73d province in 1982. Located in the northeastern (Isan) region of the country, on the banks of the river Mekong, it was formerly as district of Nakhon Phanom Province. The population of the city was 100,000 in the year 2000. Pre-historic paintings and other archaeological discoveries give witness that the area of Mukdahan used to be the location of ancient communities. The modern history of the city begins late in the Ayutthaya Era (1350-1767).