Background: The Sea Peoples are a purported seafaring confederation that attacked ancient Egypt and other regions of the East Mediterranean prior to and during the Late Bronze Age collapse (1200-900 BC). Following the creation of the concept in the nineteenth century, it became one of the most famous chapters of Egyptian history, given its connection with, in the words of Wilhelm Max Muller: "the most important questions of ethnography and the primitive history of classic nations." Their origins uncertain, the various Sea Peoples have been proposed to have originated from places that include western Asia Minor, the Aegean, the Mediterranean islands, and Southern Europe. Although the archaeological inscriptions do not include reference to a migration, the Sea Peoples are conjectured to have sailed around the eastern Mediterranean and invaded Anatolia, Syria, Canaan, Phoenicia, Cyprus, and Egypt toward the end of the Bronze Age.
Context: The concept of the Sea Peoples was first described by Emmanuel de Rouge in 1855, then curator of the Louvre, in his work Note on Some Hieroglyphic Texts Recently Published by Mr. Greene, describing the battles of Ramesses III described on the Second Pylon at Medinet Habu, and based upon recent photographs of the temple by John Beasley Greene. De Rouge noted that "in the crests of the conquered peoples the Sherden and the Teresh bear the designation of the 'peuples de la mer'", in a reference to the prisoners depicted at the base of the Fortified East Gate. In 1867, de Rouge published his Excerpts of a memoire on the attacks directed against Egypt by the peoples of the Mediterranean in the 14th century BCE, which focused primarily on the battles of Ramesses II and Merneptah, and which proposed translations for many of the geographic names included in the hieroglyphic inscriptions. De Rouge later became chair of Egyptology at the College de France, and was succeeded by Gaston Maspero. Maspero built upon de Rouge's work, and published The Struggle of the Nations, in which he described the theory of the seaborne migrations in detail in 1895-6 for a wider audience, at a time when the idea of population migrations would have felt familiar to the general population.  The theory was taken up by other scholars such as Eduard Meyer, and became the generally accepted theory amongst Egyptologists and orientalists. Since the early 1990s, however, the theory has been brought into question by a number of scholars.  The historical narrative stems primarily from seven Ancient Egyptian sources, and although in these inscriptions the designation "of the sea" does not appear in relation to all of these peoples, the term "Sea Peoples" is commonly used to refer to the following nine peoples, in alphabetical order:
Question: What is the History of the concept. Whats the answer?
The concept of the Sea Peoples was first described by Emmanuel de Rouge in 1855, then curator of the Louvre, in his work Note on Some Hieroglyphic Texts