The first commercially successful mouthguard was invented by a dentist in 1890, initially marketed to boxers. elaborate
The first mass-produced skateboard was called the "Makaha" and was released in 1963. elaborate
The first athletic shoes were made of canvas and rubber. elaborate
The iconic three stripes of Adidas were originally inspired by a shoemaker's laces. elaborate
The sweet spot on a tennis racket is not actually a spot, but rather a relatively large area. elaborate