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The Russians'first successful launch of a satellite into space sent the United States into a flurry of Cold War concern. The fear of falling behind prompted the development of NASA and the Department of Defense's ARPA (Advanced Research Project Agency), which sought to find a safe secondary way to communicate in the event that phone service was attacked. Image source: Wikicommons, public domain
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First successful message sent through ARPAnet by UCLA student programmer, Charley Kline. Image source: wikicommons, public domain
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Entire 4--node network established. Image source: Wikicommons, public domain
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Computer engineer Ray Tomlinson sent himself several test e-mails, the first of which was likely "QWERTYIOP." The date of this is not specific, usually cited by Tomlinson as "late 1971." He later assigned the @ symbol as the locator in the e-mail address as well. Image source: wikicommons, public domain
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First international connection with ARPAnet established in June 1973, largely to transmit seismic data. Image: Wikicommons, public domain
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NSF created five super-computing centersat Princeton, Pitt, UCSD, UIUC, and Cornell, resulting in an explosion of connections. Image source: Wikicommons, public domain
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On this date, Berners Lee released his proposal for the World Wide Web. The first site was launched in August 1991, in which he discussed what the Web was, and instructed others in making their own sites. Image source: Wikicommons, public domain
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Mosaic 0.5, the first internet browser, was released.
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ISPs began offering internet access in 1995, including AOL, Compuserve and Prodigy. Image source: Wikicommons, public domain
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Source code for Netscape Navigator browser released to the public. Image source: Wikicommons, public domain