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Person stub

Leonard Kleinrock

b. 1934 · American engineer

American engineer (b. 1934) whose lab sent the first ARPANET message.

Leonard Kleinrock — American engineer (b. 1934) whose lab sent the first ARPANET message.

This entry is a stub. It will be written out in full when a Chromix article calls for it. What belongs here: what Leonard Kleinrock actually did, why it mattered at the time, and what it made possible afterwards — each claim carrying its own source.

This entry is a stub. Most First Principles entries begin short and deepen only when a new article calls for it — the encyclopedia grows as Chromix writes.