Queen Elizabeth II Becomes The Longest-Reigning Monarch in British History, 65 Years On The Throne

-- UK's first monarch to reach a Sapphire Jubilee  65 years on the throne -- Elizabeth II celebrates sapphire jubilee It has been 65 years since Queen Elizabeth II, the longest-reigning monarch in British history, ascended to the throne. See her life in photos. Queen Elizabeth II just became the UK's first monarch to reach a Sapphire Jubilee -- 65 years on the throne. In honor of her