Its use was banned .
Its use was supplemented with the very similar Thai alphabet in 1871 ; however , the region remained culturally and politically distant until further government campaigns and integration into the Thai state ( Thaification ) were imposed in the 20th century .
Its use was banned and supplemented with the very similar Thai alphabet in 1871 ; however , the region remained culturally and politically distant until further government campaigns and integration into the Thai state ( Thaification ) were imposed in the 20th century .