Ernest Shackleton's 1914-1917 Ross Sea Party, which was stranded in a hut when their ship blew out to sea, left a box of never-before-seen negatives when they were finally rescued. Recently, Conservators of the New Zealand Antarctic Heritage Trust came across the 22 exposed, but unprocessed, cellulose nitrate negatives during an attempt to restore an old exploration hut.
An American Odyssey reveals the archive of the Detroit Photographic Company from the late 1880s to the early 1920s.
Using a photolithographic technique called Photochrom, black-and-white negatives were reproduced in color.
Sarasota has been the winter headquarters for a number of circuses, most notably the Ringling Brothers Circus (there is of course, their legacy: Ringling Museum, Ringling School of Art and Design, for example).
Here from the pages of LIFE magazine are some day-in-the-life photos of the circus girls in Sarasota in and around 1949.
Filling in what's missing from iconic Black & White photos, namely, the color, has an amazing impact on our perception and connection with the subjects. Of course, it is a matter of invention and conjecture, but stunning none the less. A whole bunch of amazing ones over at a group on reddit, called r/ColorizedHistory.
Click images to see full size.