The project is designed as a first step for a more thorough cooperation between those philosophers and theologians of Basel, Freiburg and Strasbourg who are concerned with medieval intellectual history. Its general interest is in ‘conceptions of medieval thought’, both in their historicity and as historically reflected. Since medieval thought has mostly been seen as the combination of a specific language and method, this first step focuses on these two poles and explores their conceptualizations from the first historical drafts in the 2^nd arabic century to the historicism of the 19^th christian century.