National Geographic : 1929 Dec
THE NATIONAL GEOGRAPHIC MAGAZINE Photograph by Neil M. Judd THE RESCUE OF THE "ROSETTA STONE" OF AMERICAN ARCHEOLOGY The end of Beam HH39, found at Showlow Ruin, was carefully wrapped with twine until the whole charred log could be uncovered and taken out (see text, page 766). uncertainty. Its respective ends, figur atively speaking, rested upon staunch abutments in both the old and the new sequences. Its inner rings overlapped the late dec ades of the old chronology by 49 years, the final ring resting on the year 537 of that sequence; its outer ones overlapped the earliest 120 years of the new, the last one reaching to 1380. Thus the 26 years from 1260 to 1286, which had belonged to both chronologies, were definitely matched and their union confirmed by Beam HH39, which in American archeology is destined to hold a place comparable to Egypt's Rosetta Stone. The successful dating of the many ruins of the pueblo area that this research has made possible (see map, page 743) en ables us now to correlate the increases of rainfall that permitted these villages to expand and the drought years that placed upon them the heavy hand of starvation. With careful archeological study we shall perhaps be able to trace the move ments of clans and test tribal traditions which have been so often quoted as the early history of these people. In the combination of climatic conditions with tribal activities we have a rich field for studying the influence of climate on human history.