French and German, along with mathematics and chemistry. Fulton also exhibited the first panorama painting to be shown in Paris, Pierre Prévost's Vue de Paris depuis les Tuileries (1800), on what is still called Rue des Panoramas (Panorama Street) today. While living in France, Fulton designed the first working muscle-powered submarine, , between 1793 and 1797. He also experimented with torpedoes. When tested, his submarine operated underwater for 17 minutes in 25 feet of water. He asked the government to subsidize its construction, but he was turned down twice. Eventually, he approached the Minister of Marine and, in 1800, was granted permission to build. The shipyard Perrier in Rouen built it, and the submarine sailed first in July 1800 on the Seine River in the same city. In France, Fulton met Robert R. Livingston, who was appointed U.S. Ambassador to France in 1801. He also had a scientifically curious mind, and the two men decided to collaborate on building a steamboat and to try operating it on the Seine. Fulton experimented with the water resistance of various hull shapes, made drawings and models, and had a steamboat constructed. At the first trial the boat ran perfectly, but the hull was later rebuilt and strengthened. On August 9, 1803, when this boat was driven up the River Seine, it sank. The boat was long, with an beam, and made between against the current. In 1804, Fulton switched allegiance and moved to Britain, where he was commissioned by Prime Minister William Pitt the Younger to build a range of weapons for use by the Royal Navy during Napoleon's invasion scares. Among his inventions were the world's first modern naval "torpedoes" (modern "mines"). These were tested, along with several other of his inventions, during the 1804 Raid on Boulogne, but met with limited success. Although Fulton continued to develop his inventions with the British until 1806, the crushing naval victory by Admiral Horatio Nelson at the 1805 Battle of Trafalgar greatly reduced the risk of French invasion. Fulton was increasingly sidelined as a result. Career in the United States (1806–1815) In 1806, Fulton returned to the United States. In 1807, he and Robert R. Livingston built the first commercially successful steamboat, (later known as Clermont). Livingston's shipping company began using it to carry passengers between New York City and up the Hudson River to the state capital Albany. Clermont made the trip in