Brothertown Indians
...that the Brothertown Indians were the first tribe of Native Americans in the United States to become United States citizens, which caused the tribe to relinquish their tribal sovereignty?
...that the <b id="mwBgI"><a href="./Brothertown_Indians" id="mwBgM" rel="mw:WikiLink" title="Brothertown Indians">Brothertown Indians</a></b> were the first tribe of <a class="mw-disambig" href="./Native_Americans" id="mwBgQ" rel="mw:WikiLink" title="Native Americans">Native Americans</a> in the <a href="./United_States" id="mwBgU" rel="mw:WikiLink" title="United States">United States</a> to become United States citizens, which caused the tribe to relinquish their <a class="mw-redirect" href="./Tribal_sovereignty" id="mwBgY" rel="mw:WikiLink" title="Tribal sovereignty">tribal sovereignty</a>?