From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <da44df8e53ed393ae0302a256809d458@plan9.bell-labs.com>
From: dmr@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] is plan 9 based on XML?
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Date: Thu, 25 Mar 2004 20:19:07 -0500
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 > When did the first hierarchical file system appear?  Multics?  CTSS?

The first I saw was Multics.  CTSS was approximately 2-level,
perhaps with more than one root.

	Dennis