Roller-skating sports include speed skating, hockey, figure skating, and dancing competitions similar to the ice-skating sports, as well as the 🍊 vertical and street-style competitions common to so-called extreme sports.
Development of the roller skate The invention of roller skates has been 🍊 traditionally credited to a Belgian, Joseph Merlin, in the 1760s, although there are many reports of wheels attached to ice 🍊 skates and shoes in the early years of that century.
Early models were derived from the ice skate and typically had 🍊 an "in-line" arrangement of wheels (the wheels formed a single straight line along the bottom of the skate).In 1819 M.
Petibled 🍊 of Paris received the first patent for a roller skate.
Like previous models, Petibled's skate had an in-line wheel arrangement, using 🍊 three wooden or metal wheels.
black jack jogo de cartas
