Maarten Raven Maarten Raven Maarten J. Raven (born 1953, Utrecht) is a Dutch Egyptologist. Raven is the curator (since 1978) of the department of Egyptology at the Rijksmuseum van Oudheden in Leiden. In addition to his work at the museum, he has been active as an archeologist in Saqqara since 1975. In Saqqara, he has been working (as joint field director since 1999) on a New Kingdom archeological burial site, a cooperation of the Rijksmuseum van Oudheden and the Egypt Exploration Society (1975–1998) and Leiden University (1999-) In September 2012 he was also appointed as extraordinary professor 'Museology of Ancient Egypt' at
Saqqara Bird showing those boats are found in the Temple of Khonsu at Karnak and date to the late New Kingdom. Some have suggested that the Saqqara Bird may represent evidence that knowledge of the principles of aviation existed many centuries before such are generally believed to have first been discovered. Egyptian physician, archaeologist, parapsychologist and dowser Khalil Messiha has speculated that the ancient Egyptians developed the first aircraft. He wrote that it "represents a diminutive of an original monoplane still present in Saqqara." He also claimed that the Saqqara Bird could function as a glider if it had a horizontal tailplane,