a German scientist, engineer, and businessman, inventor of processes which led to the first reliable and efficient compressed-ammonia refrigerator

a Swiss Neoclassical painter who had a successful career in London and Rome

a German-Swiss poet, novelist, and painter. His best-known works include Demian, Steppenwolf, Siddhartha, and The Glass Bead Game

a Spanish author novelist biographer and physician, one of the key novelists of the Generation of '98

a German expressionist painter and printmaker; he was one of the four founders of the artist group Die Brücke.

a German astronomer. Among his activities, he worked on the calculation of the periods of comets and asteroids and measured the distance from the Earth to the Sun