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The team hopes that using this "archaeomagnetism," which looks for signatures of the Earth's magnetic field in archaeological items, will improve the history of Earth's magnetic field, and can help better date artefacts that they previously couldn't.

The real significance of the research is in the interdisciplinary connections, said Oded Lipschits, an archaeologist and one of the study’s co-authors: Experts in the new technique, known as archaeomagnetism, gain “chronological anchors” from the work of archaeologists — footholds in the historical timeline.

Using this kind of data, we have a partial history of archaeomagnetism for the Northern Hemisphere.