Several mueang were grouped together into one boriwen.
In 1908 the boriwen were renamed to changwat,[1] which became the name of provinces countrywide in 1916.
[2] The monthon with between three and five boriwen were Phayap, Udon Thani and Isan.
The administrative headquarters of the boriwen were located in the provincial town listed first:
This Thailand location article is a stub.