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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.lang.lisp
Subject: Re: Lisp history: IF, etc.
Date: Thu, 4 Apr 2024 00:07:54 -0000 (UTC)
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On Wed, 03 Apr 2024 14:15:14 -0400, Alan Bawden wrote:

> Other programming languages at the time (e.g. FORTRAN and ALGOL) only
> had conditional statements.

Algol60 had if-expressions, e.g.

    a := if b then c else d

Fortran had loop expressions, but they were only allowed in I/O 
statements.