Paleo-ecological and tectonic events from the Miocene period created the Danakil Isthmus, a land bridge that forms a broad link between Yemen and Ethiopia.  Over the past 100,000 years, changes in sea level have resulted in alternating opening and closing of the strait.  According to the recent hypothesis of individual origin, the Bab-el-Mandeb straits probably witnessed the first migrations of modern man. It is thought that the oceans were much lower at the time and that the straits were much flatter or drier, which allowed a series of emigrations along the south coast of Asia. The strait takes its name from the dangers that follow its navigation or, according to an Arabic legend, figures drowned by an earthquake that separated the Arabian Peninsula from the Horn of Africa.  The British presence lasted until 1967, when the island was part of the People`s Republic of South Yemen. Prior to the handover, the British government had submitted to the United Nations a proposal for the internationalization of the island   to ensure the safety of the passage and navigation in the Bab-el-Mandeb, which was rejected. The British East India Company unilaterally conquered perim Island in 1799 on behalf of its Indian empire. The British government confirmed its assets in 1857 and built a lighthouse there in 1861, which used it to command the Red Sea and trade routes through the Suez Canal.  It was used as a coal-fired power plant to supply steamships until 1935, until the reduction in the use of coal as fuel made the operation unprofitable.
 The most important cities along the Djiboutian and Yemeni side of Bab-el-Mandeb The distance is about 30 km from Ras Menheli in Yemen to Ras Siyyan in Djibouti. The island of Perim divides the strait into two canals, the east of which, known as Bab Iskender (Alexanderstrasse), is 3 km wide and 30 m deep, while the west or Dact-el-Mayun has a width of about 25 km and a depth of 310 m. Near the coast of Djibouti is a group of minor islands known as the “Seven Brothers”. There is a surface current inward in the east channel, but a strong outward underdraward in the west channel.  Bab-el-Mandeb  is a strait between Yemen in the Arabian Peninsula and Djibouti and Eritrea in the Horn of Africa. It connects the Red Sea to the Gulf of Aden. On February 22, 2008, a company of Tarek bin Laden unveiled plans to build a bridge called Bridge of the Horns on the strait linking Yemen to Djibouti.  Middle East Development LLC issued a notice to build a Bridge over the Red Sea that would be the longest suspended road in the world.  The project was awarded to engineering firm COWI in collaboration with the Danish architectural firm Dissing-Weitling. In 2010, it was learned that Phase 1 had been postponed and that the project had not been heard since mid-2016.
The Bab-el-Mandeb serves as a strategic link between the Indian Ocean and the Mediterranean via the Red Sea and the Suez Canal. In 2006, an estimated 3.3 million barrels (520,000 m3) of oil per day crossed the strait, out of a global total of about 43 million barrels per day (6,800,000 m3/d) displaced by tankers.  According to the tradition of the Ethiopian Orthodox Church of Tewahedo, the Bab-el-Mandeb Straits witnessed the first migrations of ge`ez`s first Semitic spokesmen in Africa, which took place around 1900 BC. J.C. at about the same time as the Hebrew Patriarch Jacob.  The Kingdom of Aksum was a great regional power in the Horn of Africa. With the conquest of the kingdom of Himyarit, just before the rise of Islam, it extended its domination over the strait. Bab-el-Mandeb is also a sub-region of the Arab League, which includes Djibouti, Yemen and Eritrea.