+
+<appendix><title>Setting the Wayback Machine</title>
+
+<para>SST2K and its ancestors have a long history. One of the
+objectives of this project is to make that history available.
+Accordingly, here is a timeline of the development of SST2K and
+its ancestors, as closely as we can reconstruct it. Someday this
+may become the basis for a "wayback machine" switch that enables
+feature sets by year.</para>
+
+<itemizedlist>
+<listitem><para>1971 — Mike Mayfield's original BASIC Star
+Trek.</para></listitem>
+
+<listitem><para>5 April 1973 — Grady Hicks's BASIC version fot
+the Taurus.</para></listitem>
+
+<listitem><para>Summer 1973 — Dave Matuszek, Paul Reynolds, and
+the Austin crew begin work on the UT FORTRAN version.</para></listitem>
+
+<listitem><para>1974 — Dave Matuszek gets distracted by other
+things, notably a job change and the birth of his first
+child.</para></listitem>
+
+<listitem><para>c.1977 — Tom Almy translates the UT FORTAN
+version to PDP-11 FORTRAN.</para></listitem>
+
+<listitem><para>21 September 1978 — This was the date on the
+first version Tom Almy saw, on which he based his later C
+translation.</para></listitem>
+
+<listitem><para>1979 — Marc Newman adds Tholians, black holes,
+super-commanders, and Emeritus mode.</para></listitem>
+
+<listitem><para>1995-1996 — Tom Almy translates his FORTRAN
+port to ANSI C.</para></listitem>
+
+<listitem><para>1997 — Tom Almy finds the sources for UT
+FORTRAN on the Web and merges in features new since the 1978 version:
+EMEXIT, Tholian Web, improved death ray. He adds deep-space probes
+from the DECUS version.</para></listitem>
+
+<listitem><para>10 October 2004 — ESR starts hacking on Almy's C
+translation, de-FORTRANIZING the code. HELP/CALL/SOS becomes MAYDAY.
+</para></listitem>
+
+<listitem><para>30 October 2004 — SST2K project started on
+Berlios.</para></listitem>
+
+<listitem><para>18 January 2005 — First changes merged in from Stas
+Sergeev. The curses interface is added.</para></listitem>
+
+<listitem><para>September 2006 — BSD features merged
+in. Inhabited-worlds features and weighted critical hits date from
+this time.</para></listitem>
+
+<listitem><para>9 October 2006 — Translation to
+Python.</para></listitem>
+</itemizedlist>
+
+<para>One as-yet unanswered question is when the code changed from
+distance/direction navigation to coordinate offsets. Dave Matuszek
+believes it must have been after he stopped working on the game in
+1974.</para>
+</appendix>