With a research facility and library dedicated to promoting Nubian traditions such as dance and music, it also displays finds rescued from several archaeological sites that were subsequently flooded by the waters of Lake Nasser in the 1970s.
The archaeologists near Lake Nasser lost most of their work when it flooded. 
mnli hypothesis: The archaeologists near Lake Nasser lost most of their work when it flooded.  premise: With a research facility and library dedicated to promoting Nubian traditions such as dance and music, it also displays finds rescued from several archaeological sites that were subsequently flooded by the waters of Lake Nasser in the 1970s.