Heddiw, bron i bedair blynedd a hanner ers y refferendwm, daethpwyd i gytundeb ar berthynas y Deyrnas Unedig (DU) a’r Undeb Ewropeaidd (UE) yn y dyfodol.
Today, four and a half years since the referendum, a deal on the future relationship between the UK and the EU has been agreed.