历史小径·世界史英语30篇（4）
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The Internet Age: From ARPANET to Everyday Life
互联网时代：从ARPANET到日常生活
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In 1969, four American universities connected via ARPANET — the first network designed to share data during emergencies.
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Email appeared by 1971, and by the 1980s, scientists and universities worldwide used TCP/IP protocols to communicate.
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The World Wide Web, invented by Tim Berners-Lee in 1989, added easy navigation with hyperlinks and browsers.
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By 1995, companies like Amazon and Yahoo! launched online, proving commerce and information could thrive digitally.
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Mobile phones with internet access after 2007 turned the web into something people carried everywhere, all the time.
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Social media platforms let users create and share content, shifting news, marketing, and relationships online.
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Yet digital divides remain — nearly half the world still lacks reliable, affordable internet access today.
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This revolution changed not just tools, but how we think, remember, learn, and connect with others.