https://e-sygoing.link Latest links in the Historical category en-us Wed, 10 Jun 2026 08:28:14 -0400 https://e-sygoing.link/link/5289427-klein-felix-1849-1925 Plücker's assistant at Bonn who studied Analytic Geometry, describing geometry as the study of properties of figures which remain invariant under a Group of Transformations. He systemized Non-Euclidean Geometry. Sat, 24 Jan 2026 08:05:11 -0500 https://e-sygoing.link/go/5289427 https://e-sygoing.link/link/5289426-heron-of-alexandria-ca-75-ad Greek mathematician who was mainly interested in practical studies in mechanics and engineering, best known for Heron's Formula Fri, 21 Mar 2025 14:42:24 -0400 https://e-sygoing.link/go/5289426