Qui est né en 1855

American astronomer who founded Lowell Observatory, popularized the idea of Martian canals, and initiated the search that led to the discovery of Pluto

Poète, écrivain et dramaturge symboliste belge, 6 fois nominé au Nobel de littérature

German sociologist, economist, and philosopher best known for his influential concepts of Gemeinschaft and Gesellschaft and for co-founding the German Sociological Association