Invention of Mirror

The invention of mirrors can be traced back to as early as 6000 BCE, when polished stone mirrors were first made in Anatolia (modern-day Turkey). These mirrors were made of obsidian, a naturally occurring volcanic glass that has a very smooth and reflective surface.

In the 4th millennium BCE, mirrors made of polished copper began to appear in Mesopotamia and Egypt. These mirrors were also very reflective, and they were often decorated with images or symbols.

The first glass mirrors were made in the 3rd century AD. These mirrors were made by coating a piece of glass with a thin layer of metal, such as silver or tin. The metal layer would reflect light, creating a mirror image.

The modern silvered-glass mirror was invented in 1835 by German chemist Justus von Liebig. Liebig's process involved depositing a thin layer of silver onto a piece of glass through the chemical reduction of silver nitrate. This process was much more efficient than previous methods of making mirrors, and it led to the mass production of mirrors.

So, to answer your question, mirrors have been around for a very long time. The earliest known mirrors were made of polished stone, and they were invented in Anatolia as early as 6000 BCE. The modern silvered-glass mirror was invented in 1835 by Justus von Liebig.