Why was the invention of photography important during the Civil War, and for historians today? (In your own words)

- Photography during the Civil War had a wide-reaching impact on the public's perception on everything from their leaders to the nature of warfare. ... Historians say that photography changed the war in several ways. It allowed families to have a keepsake representation of their fathers or sons as they were away from home.During the Civil War era, the ambrotype—an image on glass—joined the tintype—an image on an iron plate—as popular means of distributing images. Audiences also greatly consumed the carte de visite—a portrait glued to paper stock. By the time of the Civil War, photography was increasingly professionalized.The invention of photography would revolutionise culture and communication in the West forever. For the first time, images of 'real' life could be captured for posterity and sent around the world. ... Talbot's negative-positive process formed the basis of almost all photography on paper up to the digital age.

Explanation:

can you give a picture of the map, i'll be able to update my answer!

answer; by working independently, the states have a high likelihood of developing innovative solutions that can be employed in other states;