In 1909, Kahn travelled with his chauffeur and photographer, Alfred Dutertre to the Far East on business and returned with many photographs of the journey. This prompted him to begin a project collecting a photographic record of the entire Earth. He appointed Jean Brunhes as the project director, and sent photographers to every continent to record images of the planet using the first colour photography, autochrome plates, and early cinematography. Between 1909 and 1931 they collected 72,000 colour photographs and 183,000 meters of film. These form a unique historical record of 50 countries, known as The Archives of the Planet.