Origin of Turkish: Turkish stems from Old Turkic, a written and spoken language first found on the Orkhon inscriptions in Mongolia. It was not until the Early Middle Ages that we can see Turkic languages spread across Central Asia, all the way to Siberia, Europe and the Mediterranean, where it developed to the Turkish we know today.  

Regional differences: Although the Turkish language has been more and more standardized since the 1930s, mainly because of the standardized education system and the influence of the media, many dialects remain. Most speakers have no trouble understanding the dialects and the difference is in pronunciation rather than vocabulary and grammar. However, you will find vowel changes quite frequently when you move between the regions!