On May 10, we remember three figures with strong ties to Basel. Karl Barth, born in Basel in 1886, became a leading Swiss Reformed theologian, known for his Christ-centered theology and his return to Basel after being expelled from Germany for opposing the Nazis. Nicolas Fatio de Duillier, born in Basel in 1664, was a mathematician and natural philosopher who made contributions to astronomy and gravitation theory, though he spent much of his career abroad. Sebastian Brant, who died on this day in 1521, was a German humanist and satirist best known for The Ship of Fools; he studied and taught law at the University of Basel, where he developed his literary career. See wikipedia for more information. See wikipedia for more information. See wikipedia for more information.