Additional Act References Additional Act Portugal [1852] 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: Maria II…modified the Charter with the Additional Act (1852). This remained the Portuguese constitution until 1910. Read More…modified the Charter with the Additional Act (1852). This remained the Portuguese constitution until 1910. Read More