2014–15 RFU Championship
... that Doncaster Knights' promotion to the 2014–15 RFU Championship was the first time a rugby team returned to the RFU Championship after being relegated for just one season?
... that <a href="./Doncaster_Knights" id="mwCIU" rel="mw:WikiLink" title="Doncaster Knights">Doncaster Knights</a>' promotion to the <b id="mwCIY"><a href="./2014–15_RFU_Championship" id="mwCIc" rel="mw:WikiLink" title="2014–15 RFU Championship">2014–15 RFU Championship</a></b> was the first time a rugby team returned to the RFU Championship after being relegated for just one season?