Zero-Knowledge Goof on Nostr: 52 years later, only known copy of Unix v4 recovered from randomly found tape, now up ...

52 years later, only known copy of Unix v4 recovered from randomly found tape, now up and running on a system — first OS version with kernel and core utilities written in C

https://www.tomshardware.com/software/linux/unix-v4-recovered-from-randomly-found-tape-at-university-of-utah-only-known-copy-of-first-os-version-with-kernel-and-core-utilities-written-in-c