Historical Turkic languages are a branch of the larger Altaic language family, primarily spoken by the Turkic peoples across Central Asia, Eastern Europe, and Siberia. These languages have a rich history, with roots tracing back to the 6th century AD. They include notable languages such as Old Turkic, which is the earliest attested form, and Chuvash, which is considered a separate branch due to its unique features. Over time, the Turkic languages have evolved and diversified into several modern languages, including Turkish, Azerbaijani, and Kazakh. These languages share common linguistic traits, such as vowel harmony and agglutination, which contribute to their grammatical structure. The study of historical Turkic languages provides insights into the cultural and social developments of the Turkic peoples throughout history.