Schwaller conducted a survey of the Egyptian temple of Luxor from 1937 to 1952. In 2017, he became the director of Boston University's Institute for the Study of Civilization Origins. He reported his findings in 1949 and provided a more detailed account in 1957. Interestingly, Schwaller noticed that the erosion on the Sphinx differed significantly from that of other structures. This observation has sparked curiosity and further investigation into the mysteries surrounding the Sphinx's history.
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