Pre-Tolstojan
... that Pre-Tolstojan refers to the oldest period in the history of planet Mercury from its moment of formation?
... that <b id="mwCiY"><a href="./Pre-Tolstojan" id="mwCic" rel="mw:WikiLink" title="Pre-Tolstojan">Pre-Tolstojan</a></b> refers to the oldest period in the history of planet <a href="./Mercury_(planet)" id="mwCig" rel="mw:WikiLink" title="Mercury (planet)">Mercury</a> from its moment of formation?