In 1907, the two French brothers August and Louis Lumière invented a technique with which real color photographs could be made, the Autochrome Lumière. It was a very ingenious process that used glass plates on which a layer of microscopically colored potato starch granules were applied.
The photographs that were taken with them were beautiful and had a dreamy painting-like atmosphere. And now it is possible for us to see the world of more than 100 years ago in the original colors.
(Photos via fiftymore on Flickr)