Researchers at the University of Cambridge have announced a revolutionary dating technique called Helium-4/Argon-40 Diffusion Chronometry. This method measures the microscopic leakage of noble gases trapped within the crystal lattice of fired clay. When applied to 1st millennium BCE pottery from the Gangetic Plain, the technique achieved decadal precision, allowing scientists to pinpoint the exact decade of site transitions during the Early Vedic Period.
This breakthrough solves long-standing debates regarding the chronology of the Painted Grey Ware (PGW) culture. The high-resolution data reveals that the transition from semi-nomadic pastoralism to permanent urban settlements occurred in a series of rapid, environmentally-driven pulses between 950 and 880 BCE. This methodology is expected to redefine the archaeological timeline of ancient India by providing the most granular dating ever achieved for non-organic artifacts.