The Siloam inscription, Silwan inscription or Shiloah inscription (Hebrew: כתובת השילוח), known as KAI 189, is a Hebrew inscription found in the Siloam tunnel which brings water from the Gihon Spring to the Pool of Siloam, located in the City of David in East Jerusalem neighborhood of Silwan ("Siloam" in the Bible). The inscription records the construction of the tunnel, which has been dated to the 8th century BC on the basis of the writing style. It is the only known ancient inscription from ancient Israel and Judah which commemorates a public construction work, despite such inscriptions being commonplace in Egyptian and Mesopotamian archaeology.