“Giant Bible of Mainz” flickr photo by CulturalVertigo https://flickr.com/photos/colinmadland/16153950908 shared under a Creative Commons (BY-SA) license
“Gutenberg Bible at Library of Congress” flickr photo by CulturalVertigo https://flickr.com/photos/colinmadland/16154174380 shared under a Creative Commons (BY-SA) license
Arpanet Logical map from 1977 Wikimedia Commons image from The Computer History Museum shared under a Public Domain license. (HT: cogdogblog.com)