Footnote 1:
The newline was chosen for convenience, but it would more exactly emulate the C argument semantics if the NUL character was used as the separator, and perhaps that ought to be done in the future.

Footnote 2:
Communications of the ACM, July, 1970, page 415ff

Footnote 3:
Under the name ``TILT'' (``Texas Instruments Language Translator''), it was used on various TI computers during the 70s and 80s.