For many inhabitants of Prague, Wenceslas Square (originally called the Horse Market) is a synonym of Prague and the core of the capital. It is a boulevard in the New Town, 750 metres long and 60 metres wide. When King Charles IV founded the New Town of Prague, he created the centre of a new settlement at this place. Although the square has changed its appearance many times since then, it has maintained the role of the most important social centre until now. The monumental building of the National Museum witnessed many critical events of Czech history. It is a traditional place of demonstrations, celebrations and other mass gatherings. It was just Wenceslas Square where on 28 October 1918 crowds of people gathered under the statue of Saint Wenceslas by Myslbek to declare the establishment of Czechoslovakia.