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ARPANET</title></head><body>
<div>At the places like BBN or SRI, it might be very easy to tell
because it was the employees, but I know at Illinois someone might
have known who all was using it, but it would have been difficult.
We had people from several parts of physics, people from Argonne
(Fermilab didn't exist yet), land-use planners around Chicago, energy
guys doing the energy I/O matrix for the US economy, math, CS (some),
chemists, economists, musicians, dancers, and I am undoubtedly leaving
some out.</div>
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<div>But Noel is right. A good indicator would be an early
ARPANET directory but I know those didn't come close to including all
of the users. At Illinois, it included primarily the people in
our facility alone, which was a fraction of all of the users of our
node.</div>
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<div>Frankly, no one really paid all that much attention to it.</div>
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<div>At 19:46 -0500 2009/11/10, Vint Cerf wrote:</div>
<blockquote type="cite" cite>the number reached 50,000 very quickly as
I recall.</blockquote>
<blockquote type="cite" cite><br></blockquote>
<blockquote type="cite" cite>v</blockquote>
<blockquote type="cite" cite><br></blockquote>
<blockquote type="cite" cite>On Nov 10, 2009, at 5:49 PM, Brian Dear
wrote:</blockquote>
<blockquote type="cite" cite><br>
<blockquote type="cite" cite>Most of the histories of the first 10
years of ARPANET show graphs depicting how the number of host machine
connections grew year by year. That's swell, but what I've
always wondered was, how many PEOPLE used the ARPANET during those
years? That is, how many people were connected to those
host machines and at what year-by-year rate did the "ARPANET
population" grow?<br>
<br>
Anyone have any references to such data?<br>
<br>
- Brian<br>
</blockquote>
<blockquote type="cite" cite><br></blockquote>
<blockquote type="cite" cite>Brian Dear</blockquote>
<blockquote type="cite" cite>PLATO History Project</blockquote>
<blockquote type="cite" cite>La Jolla, California</blockquote>
<blockquote type="cite" cite><a
href="mailto:brian@platohistory.org">brian@platohistory.org</a></blockquote
>
</blockquote>
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