Paul Gerson Unna, was a German physician specialized in dermatology and one of the pioneers in dermatopathology.

The Gelehrtenschule des Johanneums is a Gymnasium, or grammar school, in Hamburg, Germany. It is Hamburg's oldest school and was founded in 1529 by Johannes Bugenhagen. The school's focus is on the teaching of Latin and Ancient Greek. It is proud of having educated some of Germany's political leaders and some of Germany's notable scientists. The school is operated and financed by the city of Hamburg.