The Indian subcontinent has a long wedding jewellery history, which has undergone various changes via cultural influence and politics for more than 5,000–8,000 years. Because India had an abundant supply of precious metals and gems, it prospered financially through export and exchange with other countries. While European traditions were heavily influenced by waxing and waning empires, India enjoyed a continuous development of art forms for some 5,000 years. One of the first to start jewellery making were the peoples of the Indus Valley civilization. By 1500 BC, the peoples of the Indus Valley were creating gold earrings and necklaces, bead necklaces, and metallic bangles. Before 2100 BC, before the period when metals were widely used, the most extensive jewellery trade in the Indus Valley region was the bead trade. Beads in the Indus Valley were made using simple techniques. First, a bead maker would need a rough stone, which would be bought from an eastern stone trader. The stone would then be placed into a hot oven where it would be heated until it turned deep red, a colour highly prized by the people of the Indus Valley. The red stone would then be chipped to the correct size, and a hole bored through it with primitive drills. The beads were then polished. Some beads were also painted with designs. This art form was often passed down through the family. Children of bead makers often learned how to work beads from a young age. Each stone had its characteristics related to Hinduism. Wedding Jewellery in the Indus Valley was worn predominantly by females, who wore numerous clay or shell bracelets on their wrists. They were often shaped like doughnuts and painted black. Over time, clay bangles were discarded for more durable ones. In present-day India, bangles are made out of metal or glass. Other pieces that women frequently wore were thin bands of gold that would be worn on the forehead, earrings, primitive brooches, chokers, and gold rings. Although women wore jewellery the most, some men in the Indus Valley wore beads. Small beads were often crafted to be placed in men's and women's hair. The beads were about one millimetre long.