Photographic paper reacts to light to produce the image taken by a camera and stored on film. Darkrooms used red lighting to allow photographers to control light carefully, so that light-sensitive photographic paper would not become overexposed and ruin the pictures during the developing process.
<span>Nationalist wanted the same concepts uniting the citizens overall. Everyone generally unites as a whole against a common enemy. However, there were some states that wanted independence to make their own decisions.</span>
Traveling to and from cities became easier. (I think thats correct)
