Contributor(s): Professor Robin Wilson | Explore the mathematics of ancient Egypt, Mesopotamia, China, India, and the Mayans. Robin Wilson is Emeritus Professor of Pure Mathematics at the Open University and a Visiting Professor in the Department of Mathematics, LSE. Jan van den Heuvel (@JanvadeHe) is Professor of Mathematics, Department of Mathematics, LSE. The LSE Department of Mathematics is internationally recognised for its teaching and research in the fields of discrete mathematics, game theory, financial mathematics and operations research.