Bad.Bad.Bad. According to this timeline Linux started before BSD/Free/NetBSD split. Not only this but is not even drawn as Minix clone. Minix itself isn't even related on this timeline to UNICS (or AT&T UNIX) whatsoever. UNICS isn't even close somewhere on this timeline to Multics(which is much lower).
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Bad.Bad.Bad. According to this timeline Linux started before BSD/Free/NetBSD split. Not only this but is not even drawn as Minix clone. Minix itself isn't even related on this timeline to UNICS (or AT&T UNIX) whatsoever. UNICS isn't even close somewhere on this timeline to Multics(which is much lower).
You can write to the author and make a suggestion, like I did.