A language referred to as "Indo-European" was the origin of the German language. In fact, most languages spoken in Europe and Asia come from Indo-European.
The origins of speech itself can only be guessed at, but observing the behaviour and interactions of animals gives us plenty of clues. For Written Languages, we are on slightly firmer ground....
The immediate origin of language is unknown. It seems reasonable to believe that speech evolved from the vocalizations of animals, but since there are no primitive languages, and no primitive people...
The origin of language is the emergence of language in the human species. This is a highly controversial topic, empirical evidence being so limited that many regard it as unsuitable for serious...