2457 (1914) This area was a sub-district, Mae Sai, Mae CHAN, Chiang Rai until 2481 (1938) has been raised as a King Amphoe Mae Sai, Mae Chan and dependent has been raised as an Amphoe Mae Sai.
2457 This area is classified as a district in Mae Sai district, Chiang Rai province until the year 2481 has been cited as a sub-district of Mae Sai. Up to Mae Chan And has been cited as a Mae Sai.
The 2457 this area are a district Sai, MAE Chan District, Chiang Rai Province, until the year of 2481 has been promoted as district hospital With the MAE Chan District, and has been raised as Mae Sai District.