The earliest evidence of bangles, dating back to around 2600 BC, comes from the Indus Valley Civilization, specifically the Mohenjo-Daro archaeological site, with bangles made from materials like shells, copper, and gold. 

Here's a more detailed look at the history of bangles:

Early Evidence:

Archaeological discoveries in the Indus Valley Civilization, particularly at Mohenjo-Daro, reveal bangles made from various materials like shells, copper, and gold. 

A figurine of a dancing girl wearing bangles has been excavated from Mohenjo-Daro. 

Bangles have also been found in other ancient sites, including those belonging to the Mauryan Empire and the historic site of Taxila. 

Materials:

Early bangles were crafted from materials like terracotta, stone, shells, copper, and glass. 

Over time, materials like silver and gold became popular, with jewelers adding intricate diamonds and gemstones. 

Cultural Significance:

Bangles hold significant cultural and religious importance in many societies, particularly in India. 

In Indian culture, bangles are often associated with good luck, prosperity, and marital status. 

Specific colors and materials of bangles can hold symbolic meanings. 

For example, in some cultures, white bangles made from sea shells are worn by married women. 

Modern Usage:

Bangles continue to be a popular jewelry accessory worldwide, with various styles and materials available. 

They are often worn as a symbol of tradition, fashion, and personal expression. 

Firozabad, Uttar Pradesh:

The city of Firozabad in Uttar Pradesh is known for its glass bangle production.