Egyptian kings from the New Kingdom to the Romans built temples along the Nile in Lower Nubia (between the First and Second Cataracts). And there they stayed, in various stages of ruin, until the early 1960s, when the Aswan High Dam was built and Lake Nasser began to fill behind it.
An international effort to rescue the temples and other archeological sites was undertaken under the auspices of the United Nations Educational, Scientific, and Cultural Organization (UNESCO). Many temples, including those described below, were moved to higher ground, the best well-known of which was Abu Simbel. Others were dismantled and given to donor countries such as Spain, Italy, Germany, and the United States. But hundreds of archeological sites, including some temples, were inundated and remain under the waters of Lake Nasser.
Qasr Ibrim (Arabic: "fortress of Ibrim"), the only surviving Nubian archeological site that was not moved, remained in its original position on the east bank but now that "east bank" is on an island in the middle of Lake Nasser.
Some inscriptions date use of the site as early as the 17th dynasty, but the ruins seen today are Coptic from the 7th century CE.