The Donau (or Danube) is the second longest river in Europe and runs through 10 countries. 1701 marks the establishment of the first major tributary states of the Danube, including Austria, Bavaria, Baden, and Wurttemberg. In addition, the Peace of Rastatt was signed in 1714, which stated that the Danube should be open to all kinds of commerce and shipping, regardless of nationality, which greatly increased its importance as an international shipping route. 1701 onwards, the Danube also played an important role in the development of Baroque music, where Ferdinand Ritter von Wienermeister composed works known as “The Danubian School.” Lastly, it has been described as the "cultural divide" between the Latinised Western Europe and the Greek-influenced Eastern European nations.