http://www.vpri.org/pdf/tr2008004_steps08.pdf
Wirth took sabbatical years to work at Xerox PARC in the two occasions.
After the first visit when we learned about Mesa, we designed Modula-2 and its OS Lillith.
On the second visit he got to use Mesa evolution, Cedar, which was his inspiration for Oberon and the Ceres workstation.
Please note the sentence
> After the first visit when we learned about Mesa, we designed Modula-2 and its OS Lillith.
we is wrong! Stupid mobile autocorrection, it should be read he.
Wirth took sabbatical years to work at Xerox PARC in the two occasions.
After the first visit when we learned about Mesa, we designed Modula-2 and its OS Lillith.
On the second visit he got to use Mesa evolution, Cedar, which was his inspiration for Oberon and the Ceres workstation.