Queen Elizabeth II made history - not just by becoming Queen at 25, but by reigning for an incredible 70 years and 214 days. From Winston Churchill to social media, wars to royal scandals, she witnessed it all... and became a symbol of continuity in a rapidly changing world. This is the remarkable reign of Britain’s longest-serving monarch... Watch our video on the longest reigning monarch in British history: full video available in the comments on Facebook or under our bio on Instagram! | Histo