The 'History' section starts: Work on HTML 5 originally started in late 2003, as a proof of concept to show that it was possible to extend HTML4's forms ...
-- http://www.whatwg.org/html5#history-0
Having "HTML 5" (with a space) and "HTML4" (no space) seems oddly
inconsistent. Could we have them matching?
(I haven't searched to see if this also occurs elsewhere in the
document.)
Smylers
