El Horriya (El Mahrousa)

El Mahrousa, officially renamed for a period of time as El Horreya, is a super yacht that serves as Egypt's presidential yacht, and previously served as the country's royal yacht. She was built by the British ship building firm Samuda Brothers in 1863 to the order of Egyptian Khedive Ismail Pasha and was handed over to its crew two years later. El Mahrousa underwent a number of important alterations during its years of service, including the replacement of her paddle wheel engines by turbine driven propellers in 1905; the installation of a wireless telegraph in 1912 and a diesel-fueled system in 1919; as well as multiple-feet lengthenings throughout that period. She also witnessed much of Egypt's modern history since she was first commissioned in the 19th century up till now.