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ca. 1760 Gaspard Monge developed the concepts of descriptive geometry and orthographic projection.
ca. 1959 Paul de Casteljau developed some of the mathematics of Bezier curves.
ca. 2000 Erich Oswald released a specification of the graphical description language Vinci, an interpreter for it and the drawing editor Leonardo. In the ETHOberon Software Repository, scroll down to "Graphical Software".
In Commentary on Vinci Item 5 is most pertinent. Manifold.Vinci is a simple drawing represented in Vinci.