Archaeologists and physicists have unveiled a new dating methodology in the Journal of Archaeological Science that utilizes muon-induced carbon-14 calibration to achieve unprecedented sub-decadal precision. This technique was applied to the famous Neolithic menhir complexes in Brittany, France, successfully narrowing the construction windows of several megalithic alignments that were previously subject to thousand-year uncertainties.
By measuring the specific isotopic signatures created by cosmic-ray muons within the organic binders of the megalithic foundations, the team was able to distinguish between different phases of site expansion. This breakthrough suggests that the social organization required to transport and erect these massive stones was more concentrated and rapid than previously theorized, pointing toward highly coordinated labor events during the 5th millennium BCE.