What I want to know about my topic...

I know a good bit of snowboarding already since I've been doing this sport for awhile, but there are some things I would still like to learn. My essential question that I am asking is, how has snowboarding changed over the years? One of the things I wish to learn is where did snowboarding originate at? Also, I would like to know how has snowboarders progressed their style to where it is now? What extremes do snowboarders go to? What type of terrain do snowboarders snowboard on? How has snowboarding change?