Objects designed for the adornment of the body are called jewelry. While modern jewelry is made of gold, silver, or platinum, often with precious or semiprecious stones, it evolved from shells, animal teeth, and other items used as body decoration in prehistoric times. Over the centuries it came to be a sign of social or religious rank, and in Renaissance Italy, jewelry-making reached the status of a fine art. By the 19th century, industrialization brought jewelry within the reach of the middle class. Firms opened by such jewelers as Carl Fabergé and Louis Comfort Tiffany achieved great success by making fine jewelry for the wealthy.