BBCNEWS BBC News October 21, 2021 19:53:00
Recently been _ 1,000 years. that's right. it has recently been discovered - 1,000 years. that's right. it has recently been discovered that i 1,000 years. that's right. it has . recently been discovered that there was an enormous solar storm which left an was an enormous solar storm which leftan imprint was an enormous solar storm which left an imprint and growing trees and their growth rings, and the year was 90093a.d. so, what we had to do, the imprint was in an isotope called radiocarbon. we had to measure the concentration of the wood and we found that spike associated with 993. we found ...
Source: archive.org