+-w <strong>DATE</strong>\r
+</dt>\r
+<dd>\r
+<p>\r
+The wayback machine. Build the system using Debian archives from the specified\r
+date. Valid date formats are yyyymmddThhmmssZ or simply yyyymmdd. To learn\r
+which snapshots exist, i.e. which date strings are valid, simply browse the\r
+lists on <a href="http://snapshot.debian.org/">http://snapshot.debian.org/</a>. If there is no import at the exact time\r
+you specified you will get the latest available timestamp which is before the\r
+time you specified.\r
+This option is useful especially for release and debugging builds - for example\r
+if you know that the Debian archive was in a good state on a specific date but\r
+you want to build it on another day in the future, where the archive might not\r
+be as needed anymore. Please be aware that this is restricted to the plain\r
+Debian repositories only, as referred to in /etc/apt/sources.list.d/debian.list\r
+(so neither the Grml repositories nor any further custom ones are affected by\r
+the wayback machine).\r
+</p>\r
+</dd>\r
+<dt class="hdlist1">\r