"Die Katholiken entdecken Basel" offers a deep insight into the history of the Catholic community in Basel after the Reformation. The narrative begins in 1798 with the first service in the Clarakirche and highlights the challenges faced by the religious minority during the Kulturkampf in the 19th century. During this time, the Catholic community developed into a special society with its own clubs, a press, and political representation. After World War II, a transformation occurred that fostered rapprochement between the Catholics and the city of Basel, leading to the public recognition of the Catholic community in 1972. At the center of the publication is Pastor Franz Blum, who significantly contributed to the opening of the Catholic milieu as a chaplain in St. Clara. This comprehensive account also honors the post-war aid provided by the Basel Catholics to Freiburg, for which Blum received honorary citizenship in 1950.