German text / Gegenstand dieser Studie ist die historische Erforschung der deutschen Glaubens- und Gemeinschaftsmissionen, modern ausgedrückt der evangelikalen Missionen in der Zeit des Nationalsozialismus. Die bisherige Forschung hatte diesen Themenkomplex vernachlässigt. Diese Studie beschreibt, wie sich diese Missionsgesellschaften im Umfeld des nationalsozialistischen Unrechtsregimes verhielten. Da die Quellenlage problematisch ist, wird anhand der Missionsblätter aufgezeigt, wie die Glaubens- und Gemeinschaftsmissionen zur Machtergreifung Hitlers standen. Dabei kristallisierte sich heraus, dass man sich überwiegend abseits von Nationalsozialismus, Rassismus und Antisemitismus positionierte. Allerdings blieb man in den Missionsblättern zur Bekennenden Kirche distanziert. Im Hauptteil dieser Studie kommt ein aus dem Quellenmaterial eruiertes Positionenspektrum zum Vorschein, welches von NS-Affinität bis Verfolgung reicht. Dieses ist an acht biographischen Einzelstudien nachgezeichnet. Schließlich hat sich gezeigt, dass die Schuldfrage in der Nachkriegzeit kaum eine Rolle spielte. Als Ergebnis kann konstatiert werden, dass die politische Ethik der Glaubens- und Gemeinschaftsmissionen nur rudimentär vorhanden war und sich lediglich in Obrigkeitsgehorsam und apolitischer Grundhaltung zeigt. / The subject of this study is a historical examination of the German faith-missions (in contemporary terms: evangelical missions) during the period of National Socialism. This topic has been neglected in scholarly research to date. This study describes how these mission agencies acted in the context of the unlawful regime of National Socialism. Due to a problematic source basis, the attitude the faith missions took towards the ursupation of power by Hitler is demonstrated based on their own periodical publications. It emerges that they largely positioned themselves at a distance to National Socialism, racism and anti-semitism. However these publications also demonstrate a distance to the “Confessing Church”. In the main body the examination of eight exemplary biographies based on detailed sources portrays an array of different positions which range from affinity to the NS-system to persecution. Furthermore the study shows that the issue of failure or guilt hardly played any role in the postwar period. This study leads to the conclusion the political ethics of the German faith missions were only rudimentarily developed, and only evinced themselves in an obedience to the powers that be and in a basically apolitical attitude. / Christian Spirituality, Church History & Missiology / D. Th. (Missiology)

German text / Gegenstand dieser Studie ist die historische Erforschung der deutschen Glaubens- und Gemeinschaftsmissionen, modern ausgedrückt der evangelikalen Missionen in der Zeit des Nationalsozialismus. Die bisherige Forschung hatte diesen Themenkomplex vernachlässigt. Diese Studie beschreibt, wie sich diese Missionsgesellschaften im Umfeld des nationalsozialistischen Unrechtsregimes verhielten. Da die Quellenlage problematisch ist, wird anhand der Missionsblätter aufgezeigt, wie die Glaubens- und Gemeinschaftsmissionen zur Machtergreifung Hitlers standen. Dabei kristallisierte sich heraus, dass man sich überwiegend abseits von Nationalsozialismus, Rassismus und Antisemitismus positionierte. Allerdings blieb man in den Missionsblättern zur Bekennenden Kirche distanziert. Im Hauptteil dieser Studie kommt ein aus dem Quellenmaterial eruiertes Positionenspektrum zum Vorschein, welches von NS-Affinität bis Verfolgung reicht. Dieses ist an acht biographischen Einzelstudien nachgezeichnet. Schließlich hat sich gezeigt, dass die Schuldfrage in der Nachkriegzeit kaum eine Rolle spielte. Als Ergebnis kann konstatiert werden, dass die politische Ethik der Glaubens- und Gemeinschaftsmissionen nur rudimentär vorhanden war und sich lediglich in Obrigkeitsgehorsam und apolitischer Grundhaltung zeigt. / The subject of this study is a historical examination of the German faith-missions (in contemporary terms: evangelical missions) during the period of National Socialism. This topic has been neglected in scholarly research to date. This study describes how these mission agencies acted in the context of the unlawful regime of National Socialism. Due to a problematic source basis, the attitude the faith missions took towards the ursupation of power by Hitler is demonstrated based on their own periodical publications. It emerges that they largely positioned themselves at a distance to National Socialism, racism and anti-semitism. However these publications also demonstrate a distance to the “Confessing Church”. In the main body the examination of eight exemplary biographies based on detailed sources portrays an array of different positions which range from affinity to the NS-system to persecution. Furthermore the study shows that the issue of failure or guilt hardly played any role in the postwar period. This study leads to the conclusion the political ethics of the German faith missions were only rudimentarily developed, and only evinced themselves in an obedience to the powers that be and in a basically apolitical attitude. / Christian Spirituality, Church History and Missiology / D. Th. (Missiology)

The first International Congress of Mathematicians (ICM) was held in Zurich in 1897, setting the standards for all future ICMs. Whilst giving an overview of the congress itself, this thesis focuses on the Swiss organisers, who were predominantly university professors and secondary school teachers. As this thesis aims to offer some insight into their lives, it includes their biographies, highlighting their individual contributions to the congress. Furthermore, it explains why Zurich was chosen as the first host city and how the committee proceeded with the congress organisation. Two of the main organisers were the Swiss geometers Carl Friedrich Geiser (1843-1934) and Ferdinand Rudio (1856-1929). In addition to the congress, they also made valuable contributions to mathematical education, and in Rudio's case, the history of mathematics. Therefore, this thesis focuses primarily on these two mathematicians. As for Geiser, the relationship to his great-uncle Jakob Steiner is explained in more detail. Furthermore, his contributions to the administration of the Swiss Federal Institute of Technology are summarised. Due to the overarching theme of mathematical education and collaborations in this thesis, Geiser's schoolbook "Einleitung in die synthetische Geometrie" is considered in more detail and Geiser's methods are highlighted. A selection of Rudio's contributions to the history of mathematics is studied as well. His book "Archimedes, Huygens, Lambert, Legendre" is analysed and compared to E W Hobson's treatise "Squaring the Circle". Furthermore, Rudio's papers relating to the commentary of Simplicius on quadratures by Antiphon and Hippocrates are considered, focusing on Rudio's translation of the commentary and on "Die Möndchen des Hippokrates". The thesis concludes with an analysis of Rudio's popular lectures "Leonhard Euler" and "Über den Antheil der mathematischen Wissenschaften an der Kultur der Renaissance", which are prime examples of his approach to the history of mathematics.