In the 19th century Cieszyn underwent rapid cultural and educational development. In 1802 the priest Leopold Szersznik created a museum which later became a Museum of Cieszyn Silesia, one of the first public museums in Polish lands. In 1839 the Piast castle has been finally dismantled, and a new Classicist castle erected in its place. In 1836 another fire affected Cieszyn and destroyed part of the central city, including the town hall, which was restored in 1846 and remains in this form since then. In the same year a brewery was built near Castle Hill. During the Spring of Nations of 1848, Cieszyn became an important centre of the Polish national thought. In the same year, the first Polish and the first at all newspaper in the duchy, the "Tygodnik Cieszyński" appeared.