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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| American Expedition 1799–1804 | 15/17 | https://en.wikipedia.org/wiki/American_Expedition_1799–1804 | reference | science, encyclopedia | 2026-05-05T09:12:39.811011+00:00 | kb-cron |
On 1 June, Humboldt and his party arrived in Washington, which had become the United States capital in 1800. The city was still under construction, with fewer than 5,000 inhabitants and about 800 houses clustered around the Capitol, the President’s residence, and the Navy Yard along the Potomac River. The Executive Mansion, where Humboldt was invited to lunch with President Thomas Jefferson, was also incomplete and surrounded by unfinished grounds. Jefferson’s study, serving as his Cabinet room, was filled with a variety of personal and official items, including his books, maps, gardening tools, and a cage for his favorite mockingbird. It was in this space that Jefferson and Humboldt engaged in detailed discussions. Jefferson, at sixty-one, was known for his unpretentious lifestyle and devotion to family. The luncheon, attended by figures such as Charles Willson Peale, was informal, focusing on topics like natural history and international customs rather than politics. Jefferson and Humboldt quickly developed mutual respect, sharing scientific interests and political ideals. Jefferson was knowledgeable in various scientific fields, having conducted meteorological studies, experimented with agricultural techniques, and designed a plow. He was well-acquainted with the works of leading European scientists and demonstrated expertise in astronomy and paleontology. He offered Humboldt access to his Washington residence and invited him to visit Monticello in Virginia. During his visit, Humboldt observed Jefferson in private moments, including scenes of the President playing with his grandchildren. Jefferson sought detailed information from Humboldt about the newly acquired frontier with Mexico, following the Louisiana Purchase, which had doubled the size of the United States. With little American knowledge about the new territories, Jefferson valued Humboldt’s maps and statistical data, which were particularly relevant to the government’s ambitions for westward expansion and exploration, such as the Lewis and Clark expedition. Humboldt was widely entertained in Washington, visiting various sites and meeting prominent Americans, including James Madison, Albert Gallatin, Gilbert Stuart, and William Thornton. He impressed those he met with his intelligence and breadth of knowledge. After returning to Philadelphia on 18 July, Humboldt prepared for his return to Europe. He secured necessary travel documents from the British Consul and Secretary of State James Madison, reclaimed his maps, and settled his accounts. Humboldt expressed admiration for the United States in his correspondence, praising its liberty and potential while also criticizing the persistence of slavery, which he regarded as incompatible with true justice and lasting prosperity. He expressed hope for the eventual abolition of slavery and a desire to return to America. On 30 June 1804, Humboldt, Bonpland, and Montufar departed with their scientific specimens aboard the French frigate La Favorite, sailing from the Delaware River and reaching the open sea by 9 July 1804, thus concluding Humboldt’s American expedition.