What's the history of no-gi grappling??

Ok, so BJJ was a modification of judo by helio Gracie and continued the use of GI. When and why did No-gi come about?

Source: http://ninjashoes.net/forum/showthread.php?76062-What-s-the-history-of-no-gi-grappling&goto=newpost

Mark Weir Fabricio Werdum Vernon White Mike Whitehead