Carl Wilhelm Scheele

Born in Stralsund in 1742, when the city was under Swedish rule, Carl Wilhelm Scheele became a German-Swedish pharmaceutical chemist whose curiosity and practical skill made him one of the most productive experimenters of his era. He trained in pharmacy as a teenager and spent much of his working life in Swedish towns including Gothenburg, Malmö, Uppsala, and Köping.

Scheele is remembered for discovering or isolating many important substances, including oxygen and chlorine, and for identifying several other elements and compounds. Although some of his findings were published later than those of better-known contemporaries, historians of science still place him among the key figures in early chemistry because of the sheer range and accuracy of his experimental work.

He died in 1786 at just 43 years old, but his reputation has lasted because he showed how careful observation and persistence could produce major breakthroughs even without a grand laboratory. His story often appears as that of a brilliant, hardworking scientist whose contributions were larger than the credit he received in his own lifetime.