Mirrors date back approximately 8,000 years, with the earliest known manufactured mirrors made from polished volcanic glass called obsidian around 6000-8000 BCE in Anatolia (modern-day Turkey). Early mirrors were also made from polished copper and bronze in ancient Mesopotamia, Egypt, China, and India from about 4000 to 2000 BCE. Glass mirrors began to appear in the Roman era, but high-quality glass mirror production was only reintroduced in Europe during the Renaissance, with Venetians perfecting a technique in the 16th century. The modern silvered-glass mirror, as commonly known today, was invented in 1835 by German chemist Justus von Liebig.
