Erratum to:Tree rings reveal globally coherent signature of cosmogenic radiocarbon events in 774 and 993 CE (Nature Communications, (2018), 9, 1, (3605), 10.1038/s41467-018-06036-0)

The original version of this Article contained an error in the Data Availability section, which incorrectly read ‘All data will be freely available via https://www.ams.ethz.ch/research.html.’ The correct version states ‘http://www.ams.ethz.ch/research/published-data.html’ in place of ‘https://www.ams.ethz.ch/research.html’. This has been corrected in both the PDF and HTML versions of the Article