Riders start with a rope behind the boat as the wake forms.
It wasn’t long before others would pump the wake behind the boar
Wakeboarding might’ve started in the early and mid 1980s (video linked here). It came full-circle with wake surfing and wake foiling in the 2000s
the trickiest board to ride behind a boat
Check out the determination on the face of this homeboy from Bart's Watersports (competitor with a cool pic - linked here.