a French novelist and playwright. The novel sequence La Comédie humaine, which presents a panorama of post-Napoleonic French life, is generally viewed as his magnum opus

a French author, poet, and statesman who was instrumental in the foundation of the Second Republic and the continuation of the Tricolore as the flag of France

a German mathematician who made contributions to number theory, and to the theory of Fourier series and other topics in mathematical analysis;

a Swiss chemist who received the Nobel prize in Medicine for his 1939 discovery of insecticidal qualities and use of DDT in the control of vector diseases such as malaria and yellow fever.

a Spanish civil engineer, pilot and a self taught aeronautical engineer. His most famous accomplishment was the invention in 1920 of a rotorcraft called Autogiro,

a German physicist who won the Nobel Prize in Physics in 1986 for his work in electron optics, including the design of the first electron microscope