Languages of the European Union which is understood by 51% of all adults, while German is the most widely used mother tongue, spoken by 18%. All 24 official languages of the EU are accepted as working languages, but in practice only two – English and French – are in wide general use and of these English is the more commonly used. French is an official language in all three of the cities that are political centres of the Union: Brussels (Belgium), Strasbourg (France) and Luxembourg City (Luxembourg). , the official languages of the European Union, as stipulated in the latest amendment of "Regulation No 1
History of Strasbourg the north tower was built), becoming the World's Tallest Building, surpassing the Great Pyramid of Giza. A few years later, Johannes Gutenberg created the first European moveable type printing press in Strasbourg. In July 1518, an incident known as the dancing plague of 1518 struck residents of Strasbourg. Around 400 people were afflicted with dancing mania and danced constantly for weeks, most of them eventually dying from heart attack, stroke or exhaustion. In the 1520s during the Protestant Reformation, the city, under the political guidance of Jacob Sturm von Sturmeck and the spiritual guidance of Martin Bucer embraced the religious