goodwill messages
...that a small silicon disc containing goodwill messages from 73 countries was left on the Moon by the Apollo 11 astronauts?
...that a small <a href="./Silicon" id="mwEZE" rel="mw:WikiLink" title="Silicon">silicon</a> disc containing <b id="mwEZI"><a class="mw-redirect" href="./Apollo_11_Goodwill_Messages" id="mwEZM" rel="mw:WikiLink" title="Apollo 11 Goodwill Messages">goodwill messages</a></b> from 73 countries was left on the <a href="./Moon" id="mwEZQ" rel="mw:WikiLink" title="Moon">Moon</a> by the <a href="./Apollo_11" id="mwEZU" rel="mw:WikiLink" title="Apollo 11">Apollo 11</a> astronauts?