Today in 1969, the first message was sent over the ARPANET, the predecessor of the Internet, between a network node at UCLA and another one at SRI. Leonard Kleinrock: “At the UCLA end, they typed in the ‘l’ and asked SRI if they received it; ‘got the l’ came the voice reply. UCLA typed in the ‘o’, asked if they got it, and received ‘got the o’. UCLA then typed in the ‘g’ and the darned system CRASHED! Quite a beginning. On the second attempt, it worked fine!”