M-78
... that M-78, a state highway in Michigan, was extended several times and converted into a freeway, but now follows its original 1919 routing?
... that <b id="mwBl0"><a href="./M-78_(Michigan_highway)" id="mwBl4" rel="mw:WikiLink" title="M-78 (Michigan highway)">M-78</a></b>, a <a href="./Michigan_State_Trunkline_Highway_System" id="mwBl8" rel="mw:WikiLink" title="Michigan State Trunkline Highway System">state highway</a> in <a href="./Michigan" id="mwBmA" rel="mw:WikiLink" title="Michigan">Michigan</a>, was extended several times and converted into a <a class="mw-redirect" href="./Freeway" id="mwBmE" rel="mw:WikiLink" title="Freeway">freeway</a>, but now follows its original 1919 routing?