This standard work on the history of the German language presents the most important historical changes in the German language up to the present day and provides their justification, theoretical foundation, and typological classification. The German language has evolved from a syllable-based to a distinctly word-based language, which is reflected in aspects such as phonology, orthography, and morphology. In syntax, the bracket principle is emphasized. The authors explore this overarching principle and several others through numerous examples, allowing for a deeper understanding of German language history. The 5th edition has been updated and brought in line with the latest research. Reviews of the book: it offers an informative and challenging yet original and forward-looking perspective on the history of the German language, particularly recommended for beginners in the field of study.