Eric Walker added The Mother of All Demos - Wikipedia to Douglas Carl Engelbart and The Mother of All Demos
Eric Walker added The Mother of All Demos and How recursion got into programming: a tale of intrigue, betrayal, and advanced programming-language semantics | A Programmers Place and BTI360 | What I've Learned in 45 Years in the Software Industry to History of software and programming, and added History of software and programming to History of computing and Software and programming