Greek numerals
en.wikipedia.org
en.wikipedia.org
Coming to USA 25 years ago I and so many issues typing "1" my way and people thought it was "7". In addition, European "9" looks like small "g" because of the curly tail at the bottom.
Once I was suspended at work for 2 weeks, because they thought I used someones else SSN [clerk entered it wrong in their system]
[1] https://english.stackexchange.com/questions/62586/why-is-1-h...
I misinterpreted the 1 for a 7, and I used 7 grams of chili powder, instead of 1 gram.
I run across enough instances where context doesn't suffice to distinguish between the two (this is a word versus that is a number), that this is a noticeable problem for me.
sudo apt-get install ttf-ancient-fonts
and they display now after a full browser restart.