Massachusetts
... that Massachusetts was the first state in the United States to legalize same-sex marriage?
... that <b id="mwKA"><a href="./Massachusetts" id="mwKQ" rel="mw:WikiLink" title="Massachusetts">Massachusetts</a></b> was the first state in the United States to legalize <a href="./Same-sex_marriage" id="mwKg" rel="mw:WikiLink" title="Same-sex marriage">same-sex marriage</a>?