Not the best of examples. It hasn’t always been. Early fortran and lisp didn’t have it. Reading https://medium.com/better-programming/a-brief-history-of-the..., it seems Algol and PL/I set the trend to make it popular.

Looking at newer languages, I also get the impression it’s on the way out. Rust has them, but python, scala, go and swift try to avoid them (https://python-reference.readthedocs.io/en/latest/docs/opera...: “Avoid having multiple statements on a single line. Though the language definition allows one to use a semi-colon to delineate statements, doing so without reason makes one’s code harder to read”, https://golang.org/doc/effective_go.html#semicolons: “Like C, Go's formal grammar uses semicolons to terminate statements, but unlike in C, those semicolons do not appear in the source. Instead the lexer uses a simple rule to insert semicolons automatically as it scans, so the input text is mostly free of them.”, https://docs.swift.org/swift-book/LanguageGuide/TheBasics.ht...: “Unlike many other languages, Swift doesn’t require you to write a semicolon (;) after each statement in your code, although you can do so if you wish. However, semicolons are required if you want to write multiple separate statements on a single line”)