http://www.youtube.com/watch?v=PTt91h66VII
Really began in 1830s. See video above.
http://www.dolby.com/us/en/professional/technology/dolby-3d-glasses-free-3d.html
http://www.youtube.com/watch?v=01qY5kQ43vA&feature=related
Here is some news about a 3d tablet: http://www.3dtv.com/news/A-New-7-Tablet-Arrives-from-Ematic-with-Anaglyph-3D-Support