Manuel Gamio
...that Manuel Gamio conducted the first scientific excavations in the Valley of Mexico?
...that <b id="mwBAY"><a href="./Manuel_Gamio" id="mwBAc" rel="mw:WikiLink" title="Manuel Gamio">Manuel Gamio</a></b> conducted the first scientific <a class="mw-disambig" href="./Excavation" id="mwBAg" rel="mw:WikiLink" title="Excavation">excavations</a> in the <a href="./Valley_of_Mexico" id="mwBAk" rel="mw:WikiLink" title="Valley of Mexico">Valley of Mexico</a>?