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Alexander von Humboldt’s American Travel Diaries
Alexander von Humboldt’s diaries are, besides his letters, the most important surviving original documents of his travels. At the end of 2013, the Stiftung Preussischer Kulturbesitz (Prussian Cultural Heritage Foundation) acquired Humboldt’s American travel diaries. This purchase was made possible by generous financial support from public and private donors.

Alexander von Humboldt travelled through Central and South America from 1799 to 1804. During this period, he produced nearly 4,000 pages of notes, sketches, measurements, and accounts of his travels – some written in German and some in French. They testify to research of equal importance to both the natural sciences and the cultural sciences. He made contributions to many branches that began to differentiate during the nineteenth century, such as astronomy, botany, geography, history, geology, climatology, cartography, cultural anthropology, plant geography, philology, philosophy, seismology, linguistics, zoology and contemporary history.
Links for Additional Information
- Press release: "Jahrhunderterwerbung für die Staatsbibliothek zu Berlin: Alexander von Humboldts Amerikanische Reisetagebücher“ (in German) (04.03.2014)
- Press release: "Stiftung Preußischer Kulturbesitz erwirbt Alexander von Humboldts 'Amerikanische Reisetagebücher'“ (in German) (04.12.2013)
- Presse photographs of the Staatsbibliothek zu Berlin





![[Translate to English:] Alexander von Humboldt, Tagebuch III, folio 67v Sketch of an electric eel in transverse section](/fileadmin/_processed_/e/2/csm_humboldt_reisetagebuecher_lb_04_ef89d96026.jpg)
![[Translate to English:] Alexander von Humboldt, Tagebuch IV, folios 23v-24r Sketch of a piranha](/fileadmin/_processed_/b/4/csm_humboldt_reisetagebuecher_lb_05_f16e65508a.jpg)
![[Translate to English:] Alexander von Humboldt, Tagebuch IX, folio 51r Page with insert and supplementary note](/fileadmin/_processed_/8/c/csm_humboldt_reisetagebuecher_lb_06_373b4d57c3.jpg)
![[Translate to English:] Alexander von Humboldt, Reisetagebuch VII a, folio 42r Closely written page from Humboldt’s American travel diaries](/fileadmin/_processed_/4/e/csm_humboldt_reisetagebuecher_lb_07_511a85c425.jpg)
![[Translate to English:] Alexander von Humboldt, Tagebuch VII a/b, folio 220r Chart of the course of the Río Magdalena](/fileadmin/_processed_/9/c/csm_humboldt_reisetagebuecher_lb_08_180b2157da.jpg)
![[Translate to English:] Alexander von Humboldt, Tagebuch VII bb/c, folio 17r Sketch of the volcano of Chimborazo](/fileadmin/_processed_/8/f/csm_humboldt_reisetagebuecher_lb_09_167ab2e207.jpg)
![[Translate to English:] Alexander von Humboldt, Tagebuch VIII, folio 219r Geognostic section along the road linking Acapulco to Mexico City](/fileadmin/_processed_/3/2/csm_humboldt_reisetagebuecher_lb_10_04ca701c31.jpg)
![[Translate to English:] Alexander von Humboldt, Tagebuch IX, folio 140r Diagram of the positions of mine shafts in the Veta Madre of Guanajuato](/fileadmin/_processed_/a/7/csm_humboldt_reisetagebuecher_lb_11_b06683605e.jpg)