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Half a century ago in California they were trying to work out how to send information between different networks... The answer to this problem was called internetworking and hey presto the the Internet was born!
From 60's hippies to millenial hipsters: How the internet was invented https://www.theguardian.com/technology/2016/jul/15/how-the-internet-was-invented-1976-arpa-kahn-cerf