Analysis of information sources in references of the Wikipedia article "Ταϊλανδική γλώσσα" in Greek language version.
Standard Thai is a form of Central Thai based on the variety of Thai spoken earlier by the elite of the court, and now by the educated middle and upper classes of Bangkok. It ... was standardized in grammar books in the nineteenth century, and spread dramatically from the 1930s onwards, when public education became much more widespread
The dialect one hears on radio and television is the Bangkok dialect, considered the standard dialect.
The dialect one hears on radio and television is the Bangkok dialect, considered the standard dialect.