Multi-region single-year tree-ring radiocarbon data from 2000-1400 BCE

These single-year 14C data were generated as part of the Interdisciplinary Chronology of Civilizations Project (PI Charlotte Pearson), a project to provide new radiocarbon calibration data 2500 to 1000 BCE with the aim of improving radiocarbon calibration and integrating the chronologies of the Aegean, Levant, Mesopotamia and Egypt during this time period, funded by funded by the Malcolm H. Wiener Foundation and Eidgenössische Technische Hochschule Zürich. This sub-set of the total project data covers the period 2000–1500 BCE. Data generation at ETH Zürich was primarily by Lukas Wacker and Nicolas Brehm.

Underpinning the data are many years of work in developing high-quality, calendar-dated tree-ring chronologies from trees from a range of growth locations around the world. The quality of the dendrochronological cross-dating underpins the qualityof the subsequently generated single year 14C records. Key dendrochronological contributors to this data are Matthew Salzer David Brown and Kurt Nicolussi. Dendrochronological work was supported by the Malcolm H. Wiener Foundation and Historic England. It is important to measure contemporary single years in trees of different species from different growth locations in order to more clearly understand naturally occurring offsets in radiocarbon. As different dendrochronological laboratories use different methods to achieve the same tight statistical controls when dating trees of various species, separate sections are used to provide the necessary credentials for the samples used to create the 14C proposed for IntCal in this study.