The passing of Peter Komadel on 27 February 2021, in Bratislava, Slovakia, was a great loss to the clay science community. His infectious personality delighted all who knew him, and his enthusiasm for scientific enquiry inspired friends and colleagues around the world. These attributes enabled him in 1985 to leave Eastern Europe to become a postdoctoral research associate at the University of Illinois at Urbana–Champaign. This launched him on an international journey that accelerated to full speed soon after October 1989 when travel restrictions from his home country were lifted. One could rightly declare that his travels were so extensive...

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