Arthur :
>   I think it happened at about the same time for English.  Before that
> it was pretty universal.  See
> https://archive.org/details/worksbenjaminfr06spargoog/page/n12 for just one
> example.
> 
>   (The thin space in that example is really thin! -- but it’s definitely
> there)

Exactly. And this is precisely the thin space still required in French 
publications. The main disagreement among French typographs (about twenty years 
ago, at least) was about the fixed vs relative width of this thin space : put 
in TeX’s terms, should it be proportional to the glue or to the font ?

I think I’d better write an article about this, with quotes and visual 
examples.

Greetings

Thomas Savary
1 le Grand-Plessis
F-85340 L’Île-d’Olonne
Tél. 06 22 82 61 34
https://compo85.fr/

mercredi 15 janvier 2020, à 13:02:00 CET, Arthur Reutenauer a écrit :
> On Wed, Jan 15, 2020 at 11:29:35AM +0100, Taco Hoekwater wrote:
> > Dutch typesetting had some rules for thin spaces in a transition period
> > from full spaces (early) to no spaces (modern).
> > 
> > Much of this change happened in the (late) 19th century, so I guess it had
> > more to do with linotype/monotype than with modern digitisation.
>   I think it happened at about the same time for English.  Before that
> it was pretty universal.  See
> https://archive.org/details/worksbenjaminfr06spargoog/page/n12 for just one
> example.
> 
>   (The thin space in that example is really thin! -- but it’s definitely
> there)
> 
> 	Best,
> 
> 		Arthur
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