jan 1, 700 BC - ~710 BC – Nimrud lens
Description:
The Nimrud lens – a piece of rock crystal – may have been used as a magnifying glass or as a burning-glass to start fires by concentrating sunlight. It is later unearthed by Austen Henry Layard at the Assyrian palace of Nimrud in modern-day Iraq.Added to timeline:
Date:
jan 1, 700 BC
Now
~ 2727 years ago