Anchoring historical sequences using a new source of astro-chronological tie-points

TL;DR

This paper explores using Miyake Events, spikes in radiocarbon activity from solar events, as new anchor points to improve the precision of historical chronologies by linking them to absolute timescales.

Contribution

It introduces the concept of using Miyake Events as novel tie-points for anchoring historical sequences to absolute chronometry, outlining methods and challenges.

Findings

Miyake Events can serve as precise chronological markers.

Identification of Miyake Events in various plant-based artefacts.

Potential for improved accuracy in dating historical sequences.

Abstract

The discovery of past spikes in atmospheric radiocarbon activity, caused by major solar energetic particle events, has opened up new possibilities for high-precision chronometry. The two spikes, or Miyake Events, have now been widely identified in tree-rings that grew in the years 775 and 994 CE. Furthermore, all other plant material that grew in these years would also have incorporated the anomalously high concentrations of radiocarbon. Crucially, some plant-based artefacts, such as papyrus documents, timber beams and linen garments, can also be allocated to specific positions within long, currently unfixed, historical sequences. Thus, Miyake Events represent a new source of tie-points that could provide the means for anchoring early chronologies to the absolute timescale. Here, we explore this possibility, outlining the most expeditious approaches, the current challenges and obstacles, and how they might best be overcome.