French architect, designer, urbanist, writer and also painter, who is famous for being one of the pioneers of what now is called Modern architecture or the International Style. He was born in Switzerland and became a French citizen in his 30s.He was a pioneer in studies of modern high design and was dedicated to providing better living conditions for the residents of crowded cities. His career spanned five decades, with his buildings constructed throughout central Europe, India, Russia, and one each in North and South America. He was also an urban planner, painter, sculptor, writer, and modern furniture designer.