Abu Qir Bay delta once entered the sea in the vicinity of Heracleion or Eastern Canopus. A combination of Islamic texts and investigation using geoarchaeology suggest that this branch was still in existence in the eighth century, when a major inundation caused Eastern Canopus to sink into the bay. The Canopic branch subsequently declined and eventually became closed. On August 1, 1798, Horatio Nelson fought the naval "Battle of the Nile", often referred to as the "Battle of Aboukir Bay". (Not to be confused with the Battle of Abukir (1799) and the Battle of Abukir (1801).) On 1 March 1801, some 70 British
Action of 24 June 1801 a British fleet under Rear-Admiral Sir Horatio Nelson destroyed the French Mediterranean Fleet at Aboukir Bay on the Egyptian coast. The battle completely reversed the strategic situation in the Mediterranean: British forces had evacuated the region in 1796 after the Treaty of San Ildefonso brought Spain into the war on the French side, but they were now able to return in large numbers. As French maritime lines of communication were cut, the French "Armée d'Orient" under General Napoleon Bonaparte became trapped in Egypt. Unable to return to Europe by sea, the army attempted and failed to pass overland through Palestine