Prof. Ernst Haeckel of Jena, bacteriologist; Germany or Austria

Ernst Heinrich Philipp August Haeckel (1834 – 1919), German zoologist, naturalist, philosopher, physician, professor, marine biologist, and artist who promoted and popularized Charles Darwin's work, was born on 16 February 1834, in Potsdam (then part of the Kingdom of Prussia). The published artwork of Haeckel includes over 100 detailed, multi-color illustrations of animals and sea creatures, collected in his Kunstformen der Natur ("Art Forms of Nature").