Rails, first of wood and then of iron, had in some mines in Europe to transport the mineral in small carts, moved by men or draft animals, that is why the first thing-steam engine was manufactured in 1814, George Stephenson to a coal mine (dragged 30 T at 7 km / h) George Stephenson for a coal mine (would drag 30 T at 7 km / h) Ten years later, he inaugurated the first railway line to transport coal.
