Actually, there's quite a bit more back story to this than the cited
Dr. Chuck Bigelow posted on this at length a couple of times in
<usenet:comp.fonts> before he quit frequenting that group.
As I recall, the origin goes back to IBM's developing of their first
laser printers---they put out for bids on typeface designs to be used
in it, and Monotype won. As used in the laser printer, the fonts were
named for rivers in Colorado, so it was originally Sonora Sans.
Much later, Microsoft, having been stung by a trademark law suit
brought on them by Linotype for their having bitmap fonts named,
``Helv'' and ``Tms Rmn'' in Windows 3.0 and earlier (you can still see
a font aliasing command to map the bitmap fonts MS Sans and MS Serif to
these names) needed legitimate outline fonts, and had a reason _not_ to
want to work with Linotype, and so contacted Monotype. Monotype hauled
out their work for IBM (which had been marketed in the interim, I
believe) and Arial after exhaustive hinting was in the limelight.
William Adams, publishing specialist
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