[LukeShu]

There's DMR's article on early C development[0], and the accompanying backups of C compilers from that era[1].

[0]: https://www.bell-labs.com/usr/dmr/www/chist.html [1]: https://www.bell-labs.com/usr/dmr/www/primevalC.html

There are several old primary resources on C's predecessor, B [2]. Structured programming was newish, so it's fun to read these descriptions of newfangled "while" loops.

[2]: https://www.bell-labs.com/usr/dmr/www/bintro.html