The Society of German Natural Scientists and Physicians (German: Gesellschaft Deutscher Naturforscher und Ärzte, GDNÄ) is the oldest scientific association in Germany.[1][2] It was founded in 1822 by the German naturalist Lorenz Oken.[3] Carl Gustav Carus, Albert Einstein, Fritz Haber, Hermann von Helmholtz, Alexander von Humboldt, and Max Planck were all closely associated with the society and helped shape its development.[2][3] The society currently has about 2,500 members.[4] It hosts a meeting every two years in which developments in science and medicine are discussed.[5]