This is a wonderful collection of photos from the early 1900s which were collected by Albert Kahn. This description is directly from the Albert Kahn Museum website:
"Albert Kahn built up an iconographic memory of societies, environments and lifestyles – many of them traditional – around the world. From 1909 to 1931, he commissioned photographers and film cameramen to record life in over 50 countries. The images were held in the Archive of the Planet, a collection of 180,000 metres of b/w film and more than 72,000 autochrome plates, of which the Albert Kahn museum now has the largest collection in the world.
Hundreds of autochromes and few movies are available.
Autochrome was the first industrial process for true colour photography. When the Lumière brothers launched it commercially in June 1907, it was a photograhic revolution - black and white came to life in colour. Autochromes consist of fine layers of microscopic grains of potato starch – dyed either red-orange, green or violet blue – combined with black carbon particles, spread over a glass plate where it is combined with a black and white photographic emulsion. All colours can be reproduced from three primary colours."
See part two here.