As a centre of book printing, where Erasmus worked, and through its role as a mediator in religious policy, Basel became a place of refuge for religious dissidents and representatives of the Reformation in the mid-16th century.
They engaged in a (multilingual) discussion among themselves and with Basel citizens. When the Spaniard Michael Servet (1511-1553) was burned for heresy in Calvin’s Geneva in 1553, Basel became the centre of the protests.
The Savoyard humanist Sebastian Castellio (1515-1563) raised his voice with his courageous writings, which combined mystical piety with Enlightenment argumentation. Throughout the following centuries, his voice was heard across Europe for religious freedom, human rights, and tolerance.

The Reformation 1545-1620. Photo: Universitätsbibliothek Basel

The correspondence network of Castellio. Universitätsbibliothek Basel
The exhibition (Laboratorien der Toleranz. Sebastian Castellio und sein Erbe) presents Castellio’s life and works based on documents in the University Library of Basel. It encompasses historical upheavals and conflicts, networks and media, discourse, and the realm of thought, marking his work as a pivotal moment in the history of European tolerance thinking.
(Source and further Information: Universitätsbibliothek Basel)

Markus Böhmer, the commemoration of Sebastian Castellio. St. Albankirche, Basel.

Memorial Geneva















































































