Ever since the invention of the camera, incredible moments that would have been lost to history have instead been recorded by film and preserved for future generations. From the heartwarming to the bone-chilling, these 30 photos represent important moments of history caught on film. 

#1 The First Heart Surgery

In 1987 the world of medicine brought what was thought to be impossible into reality. This man, Tadeusz Zytkiewicz, is seen here holding a picture of himself following the first heart transplant ever performed. The surgery took 23 hours, and a colleague of his can be seen asleep in one side of the picture after the rigorous event.

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