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by skissane 3382 days ago
Well, contemporary Fortran is probably part of Algol family too, since newer versions of Fortran (at least 77 onwards) incorporate the block structured programming concepts from Algol.

The "family tree" analogy works imperfectly for programming languages since it is more of a directed cyclic graph than a tree structure – Fortran influenced Algol and then Algol in turn influenced Fortran.