Every year on 1 August, Swiss celebrate the founding of their nation with barbecues, friends, town celebrations and a lot of fireworks. But what is it all about? 1. The Federal Charter of 1291 Switzerland's national celebration, held every year on 1 August, celebrates the signing of the Federal Charter of 1291 in early August of that year. The three cantons of Uri, Unterwalden - now the two half cantons of Obwalden and Nidwalden, and Schwyz, agreed to stand together against outside judges and aggressors. Legend has it that a group of freedom-loving men swore an oath of allegiance on the Rütli meadow (or Grütli) on the shore of Lake Lucerne in the canton of Uri. [caption id=attachment_45439 align=alignleft width=800] Rütli meadow_© Swisshippo _ Dreamstime.com[/caption] 2. Charter rediscovered in 1758 The Federal Charter of 1291 was officially regarded as Switzerland's founding document only in the late 19th century. The latin document was rediscovered in 1758 in the Schwyz archives. The Swiss government has officially regarded it as Switzerland's founding document since the late 1800s. The first official celebration of the Charter took place in 1891 to commemorate its 600th anniversary. It became an annual celebration from 1899. [caption id=attachment_28377 align=alignleft width=800] © Astra490 | Dreamstime.com[/caption] 3. National public holiday starts in 1994  The 1st of August only became a national public holiday in 1 August 1994. On 26 September 1993, the people of Switzerland voted overwhelmingly (86.3%) for a nationwide public holiday on this date. 4. National anthem made official in 1981 Switzerland's national anthem only became official in 1981. On this date, the current anthem, the Swiss Psalm, officially replaced an earlier version sung to the British tune of God save the Queen. The lyrics can be found here in Switzerland's four national languages. Could this become Switzerland's new national anthem? (Le News) Why are the Swiss voting for a n