Links Henrique Leitão Personal page of Henrique Leitão with information on his research, papers, books and projects. Centro Interuniversitário de História das Ciências e da Tecnologia Official CIUHCT website. Medea-Chart Project The Medieval and Early Modern Nautical Charts: Birth, Evolution and Use. ERC research project on the history of nautical cartography. Medea-Chart Database Freely available (registration needed) Medea-Chart information system. Repository of information on nautical charts. Institute for Advanced Jesuit Studies The IAJS seeks to deepen an understanding of the history, spirituality, educational heritage, and pedagogical approach of the Society of Jesus. The Portal to Jesuit Studies Provides free, online access to a fully searchable collection of primary sources and scholarly publications in the field of Jesuit Studies.