Queen Elizabeth II makes history today by becoming Britain’s longest reigning monarch.<br /><br /> Elizabeth, who is 89, is also the nation’s oldest ever monarch, surpassing her great-great-grandmother Queen Victoria’s time on the throne: 63 years, 7 months, 2 days, 16 hours and 23 minutes.<br /><br /> To celebrate, the Queen will take a journey on a steam train in Scotland. <br /><br /> Longest reign installation<br /><br /> Kensington Palace in London has opened a new display to visitors to mark the occasion. The images compare the two monarch in the early years of their reigns. <br /><br /> Elizabeth II to become UK’s longest-reigning monarch. Here are leaders she has seen come & go http://t.co/dDOI7DnzEV http://t.co/avbm3zK5eN— euronews (@euronews) September 8, 2015<br /> <br /><br /> Queen Victoria painted shortly after her coronation in 1838 and Queen Elizabeth photographed in front of Westminster Abbey. <br /><br /> ‘‘I think in lots of ways, the biggest similarity between both women and their reigns is that they have both been incredible sources a