Britannica
Sources used in this answer
How was the first ARPANET message sent between UCLA and the Stanford Research Institute?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
Internet
Explore more about computers and technology in Britannica's 21st-Century Technology Timeline.
The first ARPANET message was sent on October 29, 1969, by Charley Kline, a student working under the leadership of professor Leonard Kleinrock at UCLA.12
The team intended to send the word "LOGIN" to a computer at the Stanford Research Institute. However, the system crashed after the first two letters were transmitted. Consequently, the first message successfully sent over the network was simply "LO". The connection was later restored, and subsequent communications were completed successfully.12