
used. On September 14, 1987, Professor Zorn and the ICA staff achieved
the breakthrough they needed, host-to-host connectivity with Karlsruhe
University. Zorn was able then to leave half of his team in Beijing to
work with their Chinese colleagues to finish the job.
Before Zorn left, the joint German and Chinese team composed an
e-mail message with the subject line, “First Electronic Mail from China
to Germany.” The message began in German and English, “Ueber die
Grosse Mauer erreichen wie alle Ecken der Welt” “Across the Great
Wall we can reach every corner in the world.” The message, with cc:s
to Lawrence Landweber, David Farber, Dennis Jennings, and to
themselves was signed by Professor Werner Zorn for the University of
Karlsruhe Computer Science Department (Informatik Rechnerabteilung)
and Professor Wang Yuen Fung for the ICA. Eleven coworkers are also
listed as signatories, Michael Finken, Stefan Paulisch, Michael Rotert,
Gerhard Wacker and Hans Lackner on the Karlsruhe side and Dr. Li
Cheng Chiung, Qiu Lei Nan, Ruan Ren Cheng, Wei Bao Xian, Zhu
Jiang and Zhao Li Hua on the ICA side, suggesting the complexity of the
task. Zorn mentioned Dr. Li Cheng Chiung, in particular, as playing an
important role as the Director of the ICA Computing Center. Successful
connectivity was achieved in a few more days. On September 20, 1987,
the first e-mail message, the one composed on September 14, could
actually be sent to the VAX 11/750 computer at Karlsruhe.
The transmission of this first e-mail message went over an X.25
connection. At ICA, the sender dialed using a 300 baud modem to one
of the ports of the PKTELCOM Beijing X.25 PAD, located at the
Beijing PTT. PKTELCOM Beijing was connected over a satellite link
to ITAPAC, which was the X.25 packet network of Italy. From there the
message was sent via a gateway to the German X.25 network, DATEX-
P, to be delivered to the Karlsruhe Siemens host. The Siemens host in
Karlsruhe was connected via the Karlsruhe local area network with a
VAX 11/750. That computer “irau11.germany.csnet” acted as the central
CSNET node for Germany. It polled the CSNET relay in Boston several
times a day. Thus the CSNET node in Beijing was, with that first e-mail
message, fully integrated into CSNET and via CSNET to the rest of the
e-mail world. The official status was however only experimental. At that
time the node-name was “beijing,” so the simplest address from
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