There is only 1 article tagged "the birth of the freestyle movement". Check out these popular tags:
S&M, FBM, France, Shadow, Animal, Canada, Sunday, Dakota Roche, street, Dirt Jumping, Scotty Cranmer, Trey Jones, Animal Bikes, Volume, Nathan Williams, Dew Tour, Drew Bezanson, more bmx videos, Woodward, Eclat, England, Desktop Wallpapers, Demolition, Features, Chad Kerley

Here are the results for "the birth of the freestyle movement":