Ancient Sundial Discovered in the Valley of the Kings
Archaeologists may have discovered the world’s oldest ancient Egyptian sundial, dating to the 13 th Century BC.
The sundial, which is made of a flat piece of limestone divided into 12 sections, was recovered from a workman’s hut outside a tomb in the Valley of the King’s in Egypt. Based on the place in which it was found, it is hypothesized that the device was used to measure work hours.
"The significance of this piece is that it is roughly one thousand years older than what was generally accepted as time when this type of time measuring device was used," said researcher Susanne Bickel, of the University of Basel in Switzerland.
You can read more here.