Today is Internet Day!
Most of us were introduced to the World Wide Web in the mid-1990s as it made its way into homes and offices.
I remember having AOL, as everyone did, and waiting for a page to load, only to have it time out and crash 50% of the time. Well, believe it or not, the basis for that technology was already several years old.
The first Internet transmission over the ARPANET actually occurred by UCLA student programmer Charley Kline, at 10:30 p.m., on Oct. 29, 1969. Supervised by Prof. Leonard Kleinrock, Kline transmitted from the university’s SDS Sigma 7 Host computer to the Stanford Research Institute’s SDS 940 Host computer. The message text was the word “login”; the “l” and the “o” letters were transmitted, but the system then crashed.
ARPANET, Advanced Research Projects Agency Network, was the beginning of the internet as we know it today. ARPANET was the world’s first operational packet switching network and the progenitor of what was to become the global Internet. The network was initially funded by the Advanced Research Projects Agency (ARPA, later DARPA) within the U.S. Department of Defense for use by its projects at universities and research laboratories in the US. 
1.) ARPANET (wikipedia.com)