Alexander Sergeyevich Pushkin was a Russian poet, playwright, and novelist of the Romantic era. He is considered by many to be the greatest Russian poet and the founder of modern Russian literature.
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.
Friedrich Wilhelm Heinrich Alexander von Humboldt war ein deutscher Forschungsreisender mit einem weit über Europa hinausreichenden Wirkungsfeld. In seinem über einen Zeitraum von mehr als sieben Jahrzehnten entstandenen Gesamtwerk schuf er „einen neuen Wissens- und Reflexionsstand des Wissens von der Welt“ und wurde zum Mitbegründer der Geographie als empirischer Wissenschaft. Er war der jüngere Bruder von Wilhelm von Humboldt.
Friedrich Wilhelm Heinrich Alexander, Freiherr von Humboldt, más conocido como Alexander von Humboldt, fue un polímata, geógrafo, astrónomo, humanista, naturalista y explorador prusiano, hermano menor del lingüista y ministro Wilhelm von Humboldt. Es considerado como uno de los fundadores de la geografía, entendida como ciencia empírica.
Alexander Wheelock Thayer was an American librarian and journalist who became the author of the first scholarly biography of Ludwig van Beethoven, still after many updatings regarded as a standard work of reference on the composer.
Alexandre Chatrian was a French writer, associated with the region of Alsace-Lorraine. Almost all of his works were written jointly with Émile Erckmann under the name Erckmann-Chatrian.