In what language did the semicolon first appear as a terminator?
Hmm, someone changed the question. It's not really cricket.
Regarding how it spreads, skeletal points spread well Algol 60 → Simula → C. K + R said that Pascal had no effect on them, IIRC, although some have disputed this claim.
Operator terms (other than newline) are spread from COBOL → Jovial → C. Although each has a different character as a temp.
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