The Wolfram Knowledgebase contains extensive data in a wide variety of knowledge domains. Curated mathematical data, first introduced in the Wolfram Language in Version 6, is an active area of development that continues to grow both in scope and coverage. As of Version 12, more than 20 mathematical domains are covered, including curves, laminae, solids, surfaces, knots, graphs, finite groups, function spaces, lattices and more. Precomputed values for a comprehensive set of properties are available for each mathematical entity.