Question: When was Eritrea annexed by the Horn of Africa country where, along with Kenya, Somalia, and the nation where the mountain of Hemed is found, Somali people live?

full_context: Document 1: History of Somaliland: The history of Somaliland, a region in the eastern horn of Africa bordered by the Indian Ocean, Gulf of Aden, and the east African land mass, begins with human habitation tens of thousands of years ago. It includes the civilizations of Punt, the Ottomans, and colonial influences from Europe and the Middle East.
Document 2: Garbi (mountain): Garbi is a mountain in the western part of the Tadjourah Region in Djibouti. It is located about east of Djibouti City. With a mean height of 1680 metres (5,512 ft), is the third highest point in Djibouti.
Document 3: Somalis: Somali people in the Horn of Africa are divided among different countries (Somalia, Djibouti, Ethiopia, and northeastern Kenya) that were artificially and some might say arbitrarily partitioned by the former imperial powers. Pan-Somalism is an ideology that advocates the unification of all ethnic Somalis once part of Somali empires such as the Ajuran Empire, the Adal Sultanate, the Gobroon Dynasty and the Dervish State under one flag and one nation. The Siad Barre regime actively promoted Pan-Somalism, which eventually led to the Ogaden War between Somalia on one side, and Ethiopia, Cuba and the Soviet Union on the other.
Document 4: Medeho: Medeho () is a town in the northeastern Obock Region of Djibouti. Medeho has one of the mildest climates in Djibouti, which is not always passable during the rainy season. The town is overlooked by Mabla Mountains, the fifth tallest mountain in Djibouti. As of 2016, the population of Medeho has been estimated to be 4,000.
Document 5: Somalis: The revolutionary army established large-scale public works programs and successfully implemented an urban and rural literacy campaign, which helped dramatically increase the literacy rate. In addition to a nationalization program of industry and land, the new regime's foreign policy placed an emphasis on Somalia's traditional and religious links with the Arab world, eventually joining the Arab League (AL) in 1974. That same year, Barre also served as chairman of the Organization of African Unity (OAU), the predecessor of the African Union (AU).
Document 6: Damerjog: Damerjog or Damerdjog () is a small village located in eastern Djibouti, populated by farmers and gardeners, located in the Arta Region, 16 km southeast of the capital Djibouti, north of the border with Somalia.
Document 7: Eritrea: In 1922, Benito Mussolini's rise to power in Italy brought profound changes to the colonial government in Italian Eritrea. After il Duce declared the birth of the Italian Empire in May 1936, Italian Eritrea (enlarged with northern Ethiopia's regions) and Italian Somaliland were merged with the just conquered Ethiopia in the new Italian East Africa (Africa Orientale Italiana) administrative territory. This Fascist period was characterized by imperial expansion in the name of a "new Roman Empire". Eritrea was chosen by the Italian government to be the industrial center of Italian East Africa.
Document 8: Eritrea: During the Middle Ages, the Eritrea region was known as Medri Bahri ("sea-land"). The name Eritrea is derived from the ancient Greek name for Red Sea (Ἐρυθρὰ Θάλασσα Erythra Thalassa, based on the adjective ἐρυθρός erythros "red"). It was first formally adopted in 1890, with the formation of Italian Eritrea (Colonia Eritrea). The territory became the Eritrea Governorate within Italian East Africa in 1936. Eritrea was annexed by Ethiopia in 1953 (nominally within a federation until 1962) and an Eritrean Liberation Front formed in 1960. Eritrea gained independence following the 1993 referendum, and the name of the new state was defined as State of Eritrea in the 1997 constitution.[citation needed]
Document 9: Eritrea: The Scottish traveler James Bruce reported in 1770 that Medri Bahri was a distinct political entity from Abyssinia, noting that the two territories were frequently in conflict. The Bahre-Nagassi ("Kings of the Sea") alternately fought with or against the Abyssinians and the neighbouring Muslim Adal Sultanate depending on the geopolitical circumstances. Medri Bahri was thus part of the Christian resistance against Imam Ahmad ibn Ibrahim al-Ghazi of Adal's forces, but later joined the Adalite states and the Ottoman Empire front against Abyssinia in 1572. That 16th century also marked the arrival of the Ottomans, who began making inroads in the Red Sea area.
Document 10: Eritrea: The creation of modern-day Eritrea is a result of the incorporation of independent, distinct kingdoms and sultanates (for example, Medri Bahri and the Sultanate of Aussa) eventually resulting in the formation of Italian Eritrea. In 1947 Eritrea became part of a federation with Ethiopia, the Federation of Ethiopia and Eritrea. Subsequent annexation into Ethiopia led to the Eritrean War of Independence, ending with Eritrean independence following a referendum in April 1993. Hostilities between Eritrea and Ethiopia persisted, leading to the Eritrean–Ethiopian War of 1998–2000 and further skirmishes with both Djibouti and Ethiopia.
Document 11: Somalia: Somalia (/ səˈmɑːliə / so - MAH - lee - ə; Somali: Soomaaliya; Arabic: الصومال ‎, translit. aṣ - Ṣūmāl), officially the Federal Republic of Somalia (Somali: Jamhuuriyadda Federaalka Soomaaliya; Arabic: جمهورية الصومال الفيدرالية ‎, translit. Jumhūrīyat aṣ - Ṣūmāl al - Fidirālīyah), is a sovereign state with its territory located in the Horn of Africa. It is bordered by Ethiopia to the west, Djibouti to the northwest, the Gulf of Aden to the north, the Guardafui Channel and Indian Ocean to the east, and Kenya to the southwest. It is separated from Socotra by the Guardafui Channel in the northeast. Somalia has the longest coastline on Africa's mainland, and its terrain consists mainly of plateaus, plains and highlands. Climatically, hot conditions prevail year - round, with periodic monsoon winds and irregular rainfall.
Document 12: Palermo: Palermo is surrounded by mountains, formed of calcar, which form a cirque around the city. Some districts of the city are divided by the mountains themselves. Historically, it was relatively difficult to reach the inner part of Sicily from the city because of the mounts. The tallest peak of the range is La Pizzuta, about 1,333 m (4,373 ft.) high. However, historically, the most important mount is Monte Pellegrino, which is geographically separated from the rest of the range by a plain. The mount lies right in front of the Tyrrhenian Sea. Monte Pellegrino's cliff was described in the 19th century by Johann Wolfgang von Goethe, as "The most beautiful promontory in the world", in his essay "Italian Journey".
Document 13: Somalis: Somalis constitute the largest ethnic group in Somalia, at approximately 85% of the nation's inhabitants. They are traditionally nomads, but since the late 20th century, many have moved to urban areas. While most Somalis can be found in Somalia proper, large numbers also live in Ethiopia, Djibouti, Kenya, Yemen, the Middle East, South Asia and Europe due to their seafaring tradition.
Document 14: Hemed (mountain): Hemed is a mountain in the western part of the Arta Region in south-central Djibouti. It is located about east of the capital Djibouti City. The summit is above sea level, is the eighth highest point in Djibouti.
Document 15: Eritrea: Eritrea (/ˌɛrᵻˈtreɪ.ə/ or /ˌɛrᵻˈtriːə/;, officially the State of Eritrea, is a country in East Africa. With its capital at Asmara, it is bordered by Sudan in the west, Ethiopia in the south, and Djibouti in the southeast. The northeastern and eastern parts of Eritrea have an extensive coastline along the Red Sea. The nation has a total area of approximately 117,600 km2 (45,406 sq mi), and includes the Dahlak Archipelago and several of the Hanish Islands. Its name Eritrea is based on the Greek name for the Red Sea (Ἐρυθρὰ Θάλασσα Erythra Thalassa), which was first adopted for Italian Eritrea in 1890.
ground_truth: 1953
sub_queries: Hemed >> country Answer: Djibouti
Along with Kenya, Djibouti and Somalia, in what Horn of Africa country do Somali people live? Answer: Ethiopia
When was Eritrea annexed by Ethiopia ? Answer: 1953