Iron Confederacy
... that the Iron Confederacy, an alliance of North American Plains Indians, expanded its power base from what is now northern Manitoba in the 1690s to Montana by the 1850s?
... that the <b id="mwA6c"><a href="./Iron_Confederacy" id="mwA6g" rel="mw:WikiLink" title="Iron Confederacy">Iron Confederacy</a></b>, an alliance of <a href="./Indigenous_peoples_of_the_Americas" id="mwA6k" rel="mw:WikiLink" title="Indigenous peoples of the Americas">North American</a> <a href="./Plains_Indians" id="mwA6o" rel="mw:WikiLink" title="Plains Indians">Plains Indians</a>, expanded its power base from what is now <a href="./Northern_Manitoba" id="mwA6s" rel="mw:WikiLink" title="Northern Manitoba">northern Manitoba</a> in the 1690s to <a href="./Montana" id="mwA6w" rel="mw:WikiLink" title="Montana">Montana</a> by the 1850s?