9. The Internet: Connecting the Global Village
The most profound communication network in human history was born out of Cold War paranoia. In the 1960s, the U.S. Department of Defense was deeply concerned about a potential Soviet nuclear strike wiping out the nation’s centralized communication grid. They tasked the Advanced Research Projects Agency (ARPA) with designing a decentralized network where information could automatically reroute itself if a node was destroyed.
This led to the creation of ARPANET. On October 29, 1969, a programmer named Charley Kline attempted to send the first message from a computer at UCLA to a computer at the Stanford Research Institute. He typed the letters “L” and “O” before the system crashed, making “LO” the first word transmitted over the nascent internet.
In the 1970s, American computer scientists Vint Cerf and Bob Kahn developed TCP/IP, a universal set of protocols that allowed different computer networks to speak to one another, creating a true “network of networks.” While the World Wide Web—the visual interface we use to browse—was later developed in Europe by Tim Berners-Lee, the foundational architecture of the internet is a distinctly American invention. It collapsed global borders, altered human commerce, and gave you access to the entire compendium of human knowledge in a matter of seconds.
