Photos Taken At The Right Moment + History of photography

It has been suggested that some lost type of photographic technology must have been applied before 1357: the Shroud of Turin contains an image that resembles a sepia photographic negative and is much clearer when it is converted to a positive image. The actual method that resulted in this image has not yet been conclusively identified. It first appeared in historical records in 1357 and radiocarbon dating tests indicate it was probably made between 1260 and 1390. No other examples of detailed negative images from before the 19th century are known.