Part of what made these dresses so flammable was the same thing that made them so beautiful. These dresses were meant to give the illusion that women were dreamy, romantic figures, but that also meant they had air flowing around and through them. “If you imagine a sheet of newspaper and a hunk of wood, essentially, chemically, they are the same. But one will catch light way more quickly than the other. So if you have a very flimsy, flowing something that mixes well with air, it will burn quite readily,” says Martin Bide, a professor in the textiles, fashion merchandising, and design department at the University of Rhode Island.