Analysis of information sources in references of the Wikipedia article "สาธารณรัฐประชาชน" in Thai language version.
Ironically, the ideological father of communism, Karl Marx, claimed that communism entailed the withering away of the state. The dictatorship of the proletariat was to be a strictly temporary phenomenon. Well aware of this, the Soviet Communists never claimed to have achieved communism, always labeling their own system socialist rather than communist and viewing their system as in transition to communism.
The decisive distinction between socialist and communist, as in one sense these terms are now ordinarily used, came with the renaming, in 1918, of the Russian Social-Democratic Labour Party (Bolsheviks) as the All-Russian Communist Party (Bolsheviks). From that time on, a distinction of socialist from communist, often with supporting definitions such as social democrat or democratic socialist, became widely current, although it is significant that all communist parties, in line with earlier usage, continued to describe themselves as socialist and dedicated to socialism.
Because many communists now call themselves democratic socialists, it is sometimes difficult to know what a political label really means. As a result, social democratic has become a common new label for democratic socialist political parties.