The earliest known astronomical instrument
This is an astronomical instrument known as an ‘Astrolabe’.
“For more than 150 years, scientists and researchers have been trying to uncover the secret of the controversial cuneiform tablet. The tablet proves that the alleged Köfels impact event was observed in prehistoric times.
The round stone tablet was extracted from the underground library of King Ashurbanipal 650 BC in Nineveh, Iraq, at the end of the 19th century. It was long considered an Assyrian tablet. However, a computer analysis showed that it has a much older Sumerian origin, as compared with the sky over Mesopotamia in 3300 BC.
This tablet is an astronomical instrument, known as an “Astrolabe”. The chart is segmented and disc-shaped, with the indicated units of angle measurement on the rim.