A carved Bronze Age stone with carvings found in the Ukraine, marking the oldest sundial of its kind ever found. Is believed to date back to 13th Century BC.
Larisa Vodolazhskaya of the Archaeoastronomical Research Center at Southern Federal University in Russia, confirmed the stone would have marked the time using a system of parallel lines.
The elliptical pattern makes it an analemmatic sundial and may have been used as a message to gods, or marked a sacrificial grave.
A traditional sundial sows the time using a gnomon, a stick that casts a shadow.
An analemmatic sundial has a gnomon that must move every day to adjust to the changing position of the sun in the sky.