The repository has revisions starting from 1, but they are not in /trunk
as another layout was used (/<pkg>/trunk instead of /trunk/<pkg>). But
the commits are still there:
% svn log -r 1 svn://svn.debian.org/svn/pkg-perl
------------------------------------------------------------------------
r1 | hoeve-guest | 2004-05-25 17:00:49 +0200 (Tue, 25 May 2004) | 1 line
[svn-inject] Installing original source version
SVN only displays commits relevant to the directory where you call `svn
log'. If you do so in a working directory for /trunk, you will not see
changes in other directories.
It should work if you call `svn log svn://svn.debian.org/svn/pkg-games'.