Biography: Alexander von Humboldt was a German naturalist and explorer. He is renowned for his substantial contributions to numerous modern fields, including contributions to the quantitative practices of botanical geography and geophysical measurement.
For his exploration he is best known as an explorer of the Americas, which he catalogued in several volumes across a period of over twenty years. During these travels he was often accompanied by the French botanist Aimé Bonpland.
Humboldt was particularly influential in the popularization of science, to which he contributed with his publication of his treatise titled 'Cosmos: A Sketch of a Physical Description of the Universe.'
- 1799-06-05 Naturalists Alexander von Humboldt and Aimé Bonpland set sail in the Pizarro from A Coruña and begin their 5 year Latin American expedition
- 1800-11-24 Naturalists Alexander von Humboldt and Aimé Bonpland depart Caracas for Cuba where they meet fellow botanist John Fraser
- 1802-01-06 Naturalists Alexander von Humboldt and Aimé Bonpland reach Quito, Ecuador
- 1804-08-03 Naturalist Alexander von Humboldt lands at Bordeaux, France completing his 5 year expedition to Latin America
- 1804-12-07 Naturalist Alexander von Humboldt reports his discovery of the decrease in intensity of Earth's magnetic field from the poles to the equator in a memoir to the Paris Institute