50 Years Later, Looking Back at the Internet's Birth

Date Duration
 November 5th  60 min

This year marks the 50th anniversary of the first packet sent over the Internet, an event that took place at the University of California Los Angeles (UCLA) on October 29, 1969. The message was sent over the ARPANET, from a computer at the UCLA to another at the Stanford Research Institute.

This four-node network provided early proof of the efficiency of packet-switching technology.

To commemorate this milestone, LACNIC invites members of the Internet community to join the webinar that will be held this 5 November at 14:00 (UTC-3) with the participation of very special guests and leaders in this area.


Charles Kline

He is a computer scientist who studied at UCLA under Leonard Kleinrock. Kline played a role in installing an IMP (precursor to the modern-day router) which enabled packet switching to function on ARPANET. Kline sent the first successful message on ARPANET: the message was the word "login".

Leonard Kleinrock

American engineer and computer scientist, who made several important contributions to the field of computer networking, in particular to the theoretical side of computer networking. He also played an important role in the development of the ARPANET. He works as a professor of computer science at UCLA.

Steve Crocker

He has worked in the Internet community since its inception. Steve was the leader of the Network Working Group that led to the ARPANET Host-Host and application protocols.


17:00 UTC

Welcome and Opening Remarks

Oscar Robles, LACNIC CEO

17:10 UTC

Panel: Celebrating the Internet's 50th Anniversary

Moderator: Carlos Martínez, LACNIC


  • Charles Kline
  • Leonard Kleinrock
  • Steve Crocker

17:55 UTC