AllNews'Tree Rings History' - 1 News Result(s)Secret Clocks In Tree-Rings May Help Date Ancient Events: StudyWorld News | Press Trust of India | Thursday August 18, 2016 Tree-rings may serve as secret 'time-markers' that could help archaeologists date events of intense radiation bursts from thousands of years ago, a new Oxford study has found. www.ndtv.com'Tree Rings History' - 1 News Result(s)Secret Clocks In Tree-Rings May Help Date Ancient Events: StudyWorld News | Press Trust of India | Thursday August 18, 2016 Tree-rings may serve as secret 'time-markers' that could help archaeologists date events of intense radiation bursts from thousands of years ago, a new Oxford study has found. www.ndtv.comYour search did not match any documentsA few suggestionsMake sure all words are spelled correctlyTry different keywordsTry more general keywordsCheck the NDTV Archives:https://archives.ndtv.com