Manuel José de Arriaga References Manuel José de Arriaga president of Portugal Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Portugal/ The First Republic, 1910–26…24) to the new president, Manuel José de Arriaga. Despite initial hopes that the republic would solve the massive problems inherited from the monarchy, Portugal soon became western Europe’s most turbulent, unstable parliamentary regime. Read More…24) to the new president, Manuel José de Arriaga. Despite initial hopes that the republic would solve the massive problems inherited from the monarchy, Portugal soon became western Europe’s most turbulent, unstable parliamentary regime. Read More