Even though rudimentary snowboards can be traced back to pre 1850′s Turkey, where people supposedly used modified wooden tablets to travel between villages, the first official snowboard invention lies with Vern Wicklund and the Burgeson brothers.
Wicklund built the modified sled shown above when he was 13 in 1917, and along with the Burgeson bros, had it patented in 1939. Only 5 were ever made.
Don’t believe that these things ever existed? Well check the guys scoring some fresh lines on them waaay back in the 1940s: