Library of Congress Flickr page
Forget Instagram and iPhoneography for just a minute and try to recollect the 99.5% of our photographic evolution, the time before digital camera phones. As a history buff, The Library of Congress (LOC) Flickr is photographic heaven. I could get lost for hours in the thousands of vintage images, both color and black and white. Props to putting our tax dollars to good use.
From the profile page:
What is the Library of Congress?
We serve as the national library for the United States, based in Washington, DC. With more than 142 million items preserved on some 650 miles of bookshelves, we’re also the world’s largest library.
In addition to books, we have photos, maps, databases, movies, sound recordings, sheet music, manuscripts, and information in many other formats. Millions of items are online, and the full array of collections is available in DC, right across from the U.S. Capitol building
(Above) As He Goes, half-length portrait, c1905 (photograph: Edward S. Curtis)
(Below) Bicycle riders in parade on the Fourth of July at Vale, Oregon, 1941 (photograph: Russell Lee)

