Funny how you should correct me so harshly, wiki says Linux was a project by Linus to make a unix-like system that was based off Minix. The very first versions even required Minix to run.
Check the Minix page at wiki as well, and it will also tell you that Minix was a Unix-like system.
I also was aware of the Linux-compatibility layer, I simply left it out, because there is a somewhat small chance anyone will need to emulate a Linux program, when they can simply compile sources themselves, or get a ports version.
BSD is also a Unix-LIKE system, just like the other "offshoots", as when it was released to the public, there were some licensing issues, so parts from the TRUE BSD unix were removed or replaced. It was then rereleased as the BSD's we know today.
Who is correct here?