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
Mediterranean campaign of 1798 month and presented Troubridge with a French merchant ship that was anchored in the harbour. With their first definite sighting of the French, the British fleet turned southwards towards Alexandria. On 1 August, Nelson's fleet reached the Egyptian coast, the ships HMS "Swiftsure" and HMS "Alexander" detached as scouts to investigate Alexandria harbour. Although the transport fleet was observed in the harbour, the French battle fleet was not. Despite initial disappointment, Nelson ordered his ships to search the coastline, and at 14:00 lookouts on HMS "Zealous" reported the French anchored in line of battle in Aboukir Bay. Brueys believed that