Apropos of nothing but this is one of the fun bits about FreeBSD, you can trace a lineage back through the AT&T Research Unix days. The oldest (known) survivin

Apropos of nothing but this is one of the fun bits about FreeBSD, you can trace a lineage back through the AT&T Research Unix days. The oldest (known) surviving code in FreeBSD dates back to November 1974, committed by Ken Thompson. https://www.researchgate.net/figure/The-oldest-surviving-code-in-a-2016-version-of-Freebsd-Unix-lines-114-118_fig12_306070534 https://www.researchgate.net/figure/The-oldest-surviving-cod...