Protocol of St. Petersburg Prince de Lieven arrived in St. Petersburg, serious talks began with Wellington. On 4 April 1826, the St. Petersburg Protocol, written in French, was signed by Prince de Lieven and Nesselrode for Russia and Wellington for Britain. The terms of the protocol were: The importance of the St. Petersburg protocol rested less with its precise terms, but as the beginning of the internationalization of the Greek war of independence as for the first time, two of the Great Powers had agreed to a plan to impose mediation on the war, granting the Greeks a limited independence and were willing to
20th-century classical music explored in their respective articles. At the end of the 19th century (often called the "Fin de siècle"), the Romantic style was starting to break apart, moving along various parallel courses, such as Impressionism and Post-romanticism. In the 20th century, the different styles that emerged from the music of the previous century influenced composers to follow new trends, sometimes as a reaction to that music, sometimes as an extension of it, and both trends co-existed well into the 20th century. The former trends, such as Expressionism are discussed later. In the early part of the 20th century, many composers wrote