IE is (originally) based on NCSA Mosaic code, by way of Spyglass. Spyglass had nearly 70 or so vendors using the same code if I'm not mistaken. The original so

IE is (originally) based on NCSA Mosaic code, by way of Spyglass. Spyglass had nearly 70 or so vendors using the same code if I'm not mistaken. The original source code of IE 1 can be seen (an Easter egg) in the video on our blog post (at about 40 seconds): http://blogs.msdn.com/b/ie/archive/2015/02/26/a-break-from-the-past-the-birth-of-microsoft-s-new-web-rendering-engine.aspx http://blogs.msdn.com/b/ie/archive/2015/02/26/a-break-from-t....