It is recorded that Henry I founded Meissen Castle in 929 and in the same year moved on to Bohemia. Other armies were moved down this route by Wiprecht of Groitzsch in 1107 and Emperor Lothair III in 1126. These transport routes also played an important role in the great wars of the Middle Ages. Armies in the Thirty Years' War, the Seven Years' War and during the wars of liberation from Napoleonic occupation, particularly around the year 1813, used these routes for crossing the Ore Mountains and regularly brought death, misery and devastation to the region. With the introduction of road tolls in the 14th century and also the construction of post roads in the 18th century and modern roads since the early 19th century, the old road system described above, with its sunken roads shaped by centuries of heavy carts, disappeared. In the later Middle Ages, these trade routes increasingly concentrated on the post roads (e.g. the Old and New Dresden to Teplitz Post Road) with their surveys and designations made by Adam Friedrich Zürner in 1712/13 on behalf of the Saxon Elector August the Strong. The modern road network emerged in the 19th and 20th century. It is based, as mentioned above, on the described routes of the Kulmer Steig (e.g. "Staatstraße" 173 from Pirna to the border crossing at Bahratal; "Kreisstraße" 8760 from Pirna to Herbergen; "Kreisstraße" 8770 from Dohna via Köttewitz into the Seidewitz valley, "Staatstraße" 176 from Pirna through the Seidewitz valley to Liebstadt and on to Börnersdorf and Breitenau, and, of course, the A 17 autobahn, which runs parallel to the Old Dresden to Teplitz Post Road, etc.).