an English engineer, entrepreneur, inventor and philanthropist. In 1841, he devised the British Standard Whitworth system, which created an accepted standard for screw threads.

a Swedish physicist and one of the founders of the science of spectroscopy.

a Russian author of short stories.

a Dutch landscape painter. The scope of his landscape subjects was very broad as he painted forest landscapes, winter landscape, cityscapes, architectural views and landscapes with peasants.

a German-American painter, and a leading exponent of Expressionism. He also worked as acaricaturist and comic strip artist

an English writer, known for his plays, novels and short stories. He became a medical student in London and qualified as a physician in 1897.