Ken Shirriff notes a bit of corporate self-puffery by Steve Jobs, back in '05, regarding the development of the Macintosh computer.
Jobs claims the first Macs had multiple typefaces and proportionally spaced fonts because of a calligraphy course he took after dropping out of college.
Shirriff reminds us that the Xerox Alto computer, which Jobs saw in the late '70s, had these features.
Here's a detail of Shirriff's photo of the Alto he's been restoring, with Jobs' 2005 commencement address at Stanford, where the "calligraphy" brag originated, typed in multiple, proportionally spaced fonts:
And Shirriff's detail from the above photo:
In fairness to Jobs, Shirriff adds that "[o]f course, Steve Jobs deserves great credit for making desktop publishing common and affordable with the Macintosh and the LaserWriter, something Xerox failed to do with the Xerox Star, an expensive ($75,000) system that commercialized the Alto's technology."