Imbaba ( , ) is a working-class neighbourhood in northern Giza, Egypt, located west of the Nile and northwest of and near Gezira Island and downtown Cairo, within the Giza Governorate. The district is located in the historic upper Nile Delta, and is part of the Greater Cairo metropolitan area. Imbaba is the most densely populated city subdivision in the world. Imbaba is also the name of an adjacent administrative centre () in rural Giza Governorate, which has 18 villages in its jurisdiction. Etymology The origin of the name Imbaba is not certain. Some sources claim that it comes from the Amharic word for African fan palm () and that the area was called so by Ethiopian camel merchants and herders to describe the place where they met to do business. However, the fan palm doesn't grow in Egypt and older versions of the name that do not correspond to the Amharic word are attested – Nababa () and Ambuba (). History For centuries Imbaba was the final destination for camels brought from as far as Sudan and the Horn of Africa, to be sold in the village's Friday market. The market still exists, but is no longer as important as it was up to the turn of the 20th Century due to increasing urbanisation. A map created by the General Authority for Physical Planning in 2012, shows details of areas within Imbaba which were unplanned, and that at the time, were considered unsafe. Imbaba is densely populated. Pigeon breeding is a favorite activity of some of the neighborhood residents with access to rooftops. The Siege of Imbaba In late 1992, the "Islamic Group" (al-Gama'a al-Islamiyya) expanded its influence in parts of Imbaba. In November, the group purportedly announced the establishment of the "Emirate of Imbaba" (some accounts claim that foreign news media coined the term, not the group itself). This challenge to the sovereignty of the Egyptian state triggered the siege of Imbaba, beginning on December 8. In its course, the government deployed over 12,000 police and State Security forces, along with one hundred personnel carriers and bulldozers, all of which put an end to the Emirate. The Battle of the Pyramids The Battle of the Pyramids, also known as the Battle of Embabeh, was a battle fought on July 21, 1798 between the French army in Egypt under Napoleon Bonaparte, and local Mamluk forces. It occurred during France's