OTD 1977: The first #UNIX port boots at the University of Wollongong, on their Interdata 7/32.

http://bitsavers.informatik.uni-stuttgart.de/bits/Interdata/32bit/unix/univWollongong_v6/miller.pdf

At Princeton, we were the first to *start* a UNIX port, but it was not completed until I went to Amdahl.
Wollongong also beat out the Bell Labs Interdata 8/32 port by a few months