Revised Dating Technique Places Historic Shipwreck in the Ptolemaic Empire

Tweaking radiocarbon dating technique provides a clearer time of the Kyrenia sinking.

By Paul Smaglik
Jun 26, 2024 9:00 PMJun 26, 2024 8:59 PM
Kyrenia Ship Hull during underwater excavation
Kyrenia Ship Hull during underwater excavation north of Cyprus in the later 1960s. (Credit: Image provided to authors by Kyrenia Ship Excavation team for use with this paper, CC-BY 4.0)

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Dating can be tricky. If your timing is off, it can result in misunderstandings. This is especially true in fields like archeology and paleontology.

If an item is identified as hailing from an incorrect year, entire lines of research can be put into question. So when Sturt Manning, an archeologist from Cornell University, and colleagues received a radiocarbon date that didn’t appear to line up with the archeological evidence, they tweaked the dating technique and came up with a more definitive time of a famous ship’s sinking, then published their findings in a PLOS One report.

How Accurate Is Radiocarbon Dating?

Although radiocarbon dating, which won a Nobel Prize in 1960, is considered reliable, there can be hiccups. It essentially depends on comparing the half-life of carbon-14 decay to the number of tree rings. But there are variables and confounding factors.

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