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King Clone's age is not precise to a given year, as it wasn't dated by dendrochronology proper (counting rings).Instead, KC was dated by applying known patterns of plant growth to a single organism that self-reproduces by "cloning".

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Although this technique can date objects up to approximately 230,000 years ago, is only accurate on objects 300 to 10,000 years in age.

This is, however, still over 4,000 years older than the creationist figure for the age of the Earth.

The thickness of tree rings varies with the local seasonal weather, so a sequence of thick ring, thin ring, thin ring, thick ring, thick ring, thick ring, thin ring, thick ring shared by two trees is strong evidence that the corresponding rings formed at the same time.

Each individual tree only covers the span of time it was alive and growing, but as these spans overlap it is possible to match up overlapping sections and work backwards.

Thus, a tree's age can be found by counting the rings.

Dendrochronology is the only method on this list that can date events precisely to a single year.

By measuring the ratio of these two allotropes, one can determine ages of over 20,000 years ago with a standard error under 3%.

Widmanstätten patterns are crystals composed of nickel and iron that are found in some meteorites.

Third, creationists ignore the evidence and deny that [X] exists altogether or assert that belief in a Young Earth is based on faith, not science. These ages weren't just made up — or, worse, accepted to "give evolution enough time".

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