Aswan Dam assumption did not take into account the extent of perennial irrigation that was already present throughout Egypt decades before the high dam closure. By the 1950s only a small proportion of Upper Egypt had not been converted from basin (low transmission) to perennial (high transmission) irrigation. Expansion of perennial irrigation systems in Egypt did not depend on the high dam. In fact, within 15 years of the high dam closure there was solid evidence that biharzia was declining in Upper Egypt. S. haematobium has since disappeared altogether. Suggested reasons for this include improvements in irrigation practice. In the Nile Delta,
Death on the Nile (1978 film) the Great Pyramids, the Sphinx, and temples at Abu Simbel and Karnak, even though the locations are not in sequence. The boat trip starts in Aswan, follows to Karnak and then to Abu Simbel which is upstream from Aswan. Furthermore, it was never possible to go by boat from Aswan to Abu Simbel, even before the Aswan Dam was built because of the cataracts near Aswan. "Death on the Nile" won the Academy Award for Best Costume Design at the 51st Academy Awards. Jacqueline "Jackie" de Bellefort asks her close friend, wealthy heiress, Linnet Ridgeway, to hire her fiancé, Simon