TNRTB Archive - Retained for reference information
Skeptics have long denied that the tunnel built to move water from the Gihon spring to the Pool of Siloam in Jerusalem is the tunnel, described in 2 Kings 20:20 and 2 Chronicles 32:3-4, that King Hezekiah commanded to be built as a defense against a large invading Assyrian army. British and Israeli scientists used radiocarbon and uranium-thorium dating to establish that this engineering marvel indeed was built during Hezekiah’s reign.
Amos Frumkin, Aryeh Shimron, and Jeff Rosenbaum, “Radiometric Dating of the Siloam Tunnel, Jerusalem,” Nature, 425 (2003), pp. 169-171.
RTB article: Facts & Faith articles on y-chromosome tests for Jewish and priestly heritages