Wakeboarding History

i am doing my senior project on wakeboarding and i need to know the roots of wakeboarding, who started it when did it start. i also want to know things about boards, like when was the first twin tip produced, the first 3-stage, first molded in fins, stuff like that. i also want to know some history on skiing, first set of skis, first slalom ski. i just need to know the general history on both of these sports. i did a search and came up with a post titled the same as this and i aquired some information but i need more. thanks for the help.