I know that many English-speaking Muslims, when writing Muhammad's name, will add PBUH (peace be upon him) afterward. I was just really intrigued by this because not only does this seem very standardized among English speaking Muslims (not in the sense of everyone doing it- I have no idea- but in the sense that everyone uses that acronym), it is actually an English acronym, not an Arabic one. In Judaism, there are some acronyms that are used- in fact, we have one for "peace be upon him," AH for alav hashalom/aleha hashalom (which we use for people who have passed away)- but they're generally Hebrew phrases that have been used for centuries. I've never heard of an acronym being so popularly used based off an English phrase that's a translation of an original phrase.

So where did PBUH come from? How did it become the standard? Do other languages have an equivalent acronym?

EDITED: Just to make my question clearer- how did this English-LANGUAGE (not English-LETTER) acronym become standardized among English-speaking Muslims, as opposed to what would seem to me (though possibly more just due to my own cultural background and subsequent biases) would be the more simple and universalized thing of an Arabic-LANGUAGE (in English transliteration) acronym? When/why did people start writing it in English and not Arabic?