firstAppearance
Indicates the first known occurence of a <a class="localLink" href="http://schema.org/Claim">Claim</a> in some <a class="localLink" href="http://schema.org/CreativeWork">CreativeWork</a>.
firstAppearance
Indicates the first known occurence of a <a class="localLink" href="http://schema.org/Claim">Claim</a> in some <a class="localLink" href="http://schema.org/CreativeWork">CreativeWork</a>.