When people talk about “the internet,” what they generally mean is the world wide web, an information space through which resources can be accessed via hyperlinks. But that system only dates back to 1989. The internet itself, a global network of interconnected computers, traces its lineage all the way back to the 1960s, decades before social media, search engines, or even browsers were available. David Newbury, a lead developer of the Art Tracks initiative at Pittsburgh’s Carnegie Museum Of Art, recently shared via Twitter a rather incredible document he found among his father’s papers: a map of the entire internet as it looked in May 1973. The net looks like a sparse, lonely place during the Nixon years.