The 9th-century BCE Mesha Stele is oldest known example of writing that uses punctuation.
Discovered in 1868 at Dhiban, Jordan by Rev. F. A. Klein, a German missionary in Jerusalem, the basalt stone displays an inscription made by the Moabite King Mesha, which consists of 34 lines written in Moabite. It records Mesha's victories in his revolt against the Kingdom of Israel.
The punctuation consists of points and horizontal strokes that are used to separate words. The stone now resides at the Louvre.
The oldest known example of punctuation.