was signed by Austria and France after Napoleon I's victory in the Battle of Austerlitz. Four years later, Napoleon's army besieged and bombarded the city and Napoleon himself visited Pressburg. Dévény Castle was turned into a ruin by the French troops in 1809 and Pressburg Castle was inadvertently destroyed by fire in 1811 (remaining in ruins until the 1950s). In 1820, the 9-year-old Franz Liszt played in De Pauli's Palace. Five years later, István Széchenyi offered his yearly income to establish the Hungarian National Learned Society (now the Hungarian Academy of Sciences) in Pozsony. In 1829, the Czech-Slav Society (also called the Society for the Czechoslovak Language and Literature) was created by students of the Lutheran Lyceum, which later became an important organization in the Slovak national movement. Ľudovít Štúr also began studying at the Lyceum during this period, spending 20 years there. In 1843 he codified the present-day Slovak language standard. The industrialisation of the town began with regular steamship transport on the Danube in 1830. Ten years later the first (horse-)railway line in Hungary and present-day Slovakia was built from Pressburg to the town of Svätý Jur, north of Bratislava. Later, it extended to Trnava and Sereď (1846). 1835: The first champagne was made by Esch and Co in Pressburg in Hungary 1837: The First middle-class casino (an elite club), (Mágnás Kör or Pozsonyi Casino) was founded by István Széchenyi. 1843: Sándor Petőfi lived in the city. He worked as part of the Diet's administrative staff. 1843–1844: The Hungarian language was proclaimed the official language in legislation, public administration and teaching by the Diet. 1847–1848: Emperor Ferdinand I of Austria opened the Diet in the Primate's Palace's mirror room, addressing the members in Hungarian. 1848 (16 March): Lajos Batthyány and Lajos Kossuth proposed political reforms to the emperor. Lajos Kossuth proclaimed "Hungary reborn" from the hotel Zöldfa (English: Greenwood)'s balcony the next day. Ferdinand I of Austria appointed Lajos Batthyány to form a new Hungarian government. 1848 (18 March): The Diet declared the new Hungarian constitution and abolishes serfdom. 1848: (11 April): Ferdinand I of Austria signed (in the Primate Palace's Mirror Room) the so-called March Laws, by which serfdom was partly abolished in Hungary. Then he dissolved the Diet. That was the last Hungarian Diet convened in Pressburg, since it was then transferred to Budapest. 1848–1849: During the 1848 Revolution the Hungarian Nation Guard was formed by