1948, they have run it together with the Sisters of the Congregation of Papal Law of the Maids of Mary of the Immaculate Conception, and today run it as a hospital bearing the classification II. Regelversorgung under Germany's Versorgungsstufe hospital planning system. In 1901, the Second Rhenish Diakonissen-Mutterhaus ("Deaconess's Mother-House"), founded in 1889 in Sobernheim, moved under its abbot, the Reverend Hugo Reich, to Kreuznach. It is now a foundation known as the kreuznacher diakonie (always written with lowercase initials). In 1904, the pharmacist Karl Aschoff discovered the Kreuznach brine's radon content, and thereafter introduced "radon balneology", a therapy that had already been practised in the Austro-Hungarian town of Sankt Joachimsthal in the Bohemian Ore Mountains (now Jáchymov in the Czech Republic). Even though the Bad Kreuznach's radon content was much slighter than that found in the waters from Brambach or Bad Gastein, the town was quickly billed as a "radium healing spa" – the technical error in that billing notwithstanding. In 1912, a radon inhalatorium was brought into service, into which was piped the air from an old mining gallery at the Kauzenberg, which had a higher radon content than the springwater. The inhalatorium was destroyed in 1945. In 1974, however, the old mining gallery itself was converted into a therapy room. To this day, radon inhalation serves as a natural pain reliever for those suffering from rheumatism. In the First World War, both the Kreuznach spa house and other hotels and villas became as of 2 January 1917 the seat of the Great Headquarters of Kaiser Wilhelm II. The Kaiser actually lived in the spa house. Used as the General staff building was the Oranienhof. At the spa house on 19 December 1917, General Mustafa Kemal Pasha – better known as Atatürk ("Father of the Turks") and later president of a strictly secular Turkey – the Kaiser, Paul von Hindenburg and Erich Ludendorff all met for talks. Only an extreme wintertime flood on the Nahe in January 1918 led to the Oberste Heeresleitung being moved to Spa in Belgium. Weimar Republic and Third Reich After the First World War, French troops occupied the Rhineland and along with it, Kreuznach, whose great hotels were thereafter mostly abandoned. In 1924, Kreuznach was granted the designation Bad, literally "Bath", which is conferred on places that can be regarded as health resorts. Since this time, the town has been known as Bad