The fact that OS X launched at all on March 24, 2001, was a relief and felt like an achievement if you were a long-time Mac user. Even though that very first “Cheetah” version, 10.0, lacked features and did not lack bugs, it existed and that wasn’t something you could say about Apple’s previous OS attempts.
The first official public version of Mac OS X was launched by Apple on March 24, 2001. It wasn’t a success at first, but it powered the Mac through the next 19 years until macOS Big Sur.
OS X used to come in boxes