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KD
Since: May, 2009
eroock
Since: Sep, 2012
4th Apr, 2024 08:14:58 AM
^^ Does the example include time travel? Because a 1930 item may naturally be contaminated by the isotope if checked after 1957.
A claim of something being from the 1930's is proven to be incorrect by the presence of a Cesium isotope not present in the environment until 1957.