The First Known Photograph of a Human Being

This photograph of Boulevard du Temple in Paris was made in 1838 by

Louis Daguerre, inventor of the daguerreotype process of photography:

Not only is it a superb example of the earliest photos, it is said to

be the first photograph to ever include a human being.  Two, in fact.

 Images taken in the infancy of photography required an exposure

time of over ten minutes, meaning that all of the people, carriages

and other moving things simply disappeared from the scene.

Link 

If you look in the bottom left-hand corner you will see a man who

remained somewhat still during the shot because he was having his

shoes shined.  You can also make out the silhouette of the shoe shine boy.

A truly historic event but undoubtedly

neither were aware of their participation.