An illustration of the "Dream Stele" of Thutmose IV by Karl Richard Lepsius. The stele was uncovered during Caviglia's excavations in 1817 and is thought to date to the 18th dynasty of Egypt around 1400BCE. It was found at the back of the small temple between the legs of the Great Sphinx. In the text Thutmose IV claims to have been given his kingdom by the Great Sphinx itself in exchange for protecting the Great Sphinx from the sands that were now encroaching upon it. Most of the mudbrick walls that Thutmose IV built for this purpose have now been removed although some small sections remain.