Evolution of languages
The evolution of languages or history of language includes the evolution, divergence and development of languages throughout time, as reconstructed based on glottochronology, comparative linguistics, written records and other historical linguistics techniques. The origin of language is a hotly contested topic, with some languages tentatively traced back to the Paleolithic. However, archaeological and written records extend the history of language into ancient times and the Neolithic. The distribution of languages has changed substantially over time. Major regional languages like Elamite, Sogdian, Koine Greek, or Nahuatl in ancient, post-classical and early modern times have been overtaken by others due to changing balance of power, conflict and migration.