Photoshop has made us lazy. Today, if we want to make an image spooky or funny, we just open that blue tab and away we go. But back in the old days it was a little bit trickier (plus they didn't have electricity to power their non-existent computers).
(via The Met) have uncovered a bunch of manipulated images which date between 1860 and 1990, and it's pretty amazing to think how these suckers got made. Over-painting, multiple exposures and retouching of negatives allowed pre-Photoshop tricksters to create evidence of ghosts, tiny people and Stalin hanging out where he shouldn't be.
More at flavorwire.com