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British statesman, novelist, and poet known for his political service and prolific literary output across multiple genres

German chemist, principal founder of organic chemistry, and father of the fertilizer industry who revolutionized laboratory teaching methods and developed beef extracts

Swiss-American naturalist and geologist recognized as a scholar of Earth's natural history, with significant work in ichthyology and glaciology

Scottish missionary, explorer, and anti-slavery crusader known for his extensive expeditions in Africa and advocacy for British expansion

President of the Second French Republic, Emperor of the Second French Empire, and last monarch of France, known for rapid industrialization and infrastructure expansion