- https://en.m.wikipedia.org/wiki/Scriptio_continua
- https://en.wikipedia.org/wiki/Word_divider
- https://en.wikipedia.org/wiki/Abugida
- https://en.wikipedia.org/wiki/Godescalc_Evangelistary
- https://en.wikipedia.org/wiki/Question_mark
- https://www.cam.ac.uk/research/news/the-riddle-of-the-syriac-double-dot-its-the-worlds-earliest-question-mark
- https://www.reuters.com/article/lifestyle/symbol-in-syriac-may-be-worlds-first-question-mark-idUSTRE76K4ZI/
- https://en.m.wikipedia.org/wiki/Alcuin
- https://en.wikipedia.org/wiki/Avars_(Caucasus)
- https://open.spotify.com/episode/0L810WDwvCEXm2AbgeqlO2?si=ttLXKGJuQmOSgxTh53OI6A
- https://en.m.wikipedia.org/wiki/Rune
- âEtymologyâ of graphemes e.g. , , , in Questions