Friedrich Wilhelm Heinrich Alexander von Humboldt was a German polymath, geographer, naturalist, explorer, and proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography, while his advocacy of long-term systematic geophysical measurement pioneered modern geomagnetic and meteorological monitoring.

19th-century science was greatly influenced by Romanticism, an intellectual movement that originated in Western Europe as a counter-movement to the late-18th-century Enlightenment. Romanticism incorporated many fields of study, including politics, the arts, and the humanities.