A new record for Longest reigning queen has today been set by Her Majesty Queen Elizabeth II.
As of today, Elizabeth's reign exceeds that of Queen Victoria, which had lasted 63 years, seven months and three days from 20 June 1837 to 22 January 1901.
Born on 21 April 1926, Elizabeth took to the throne on 6 February 1952 following the death of her father, King George VI. 
The title for the overall Longest reigning living monarch, however, continues to be held by King Bhumibol Adulyadej (Rama IX) of Thailand, who ascended to the throne on 9 June 1946 and has reigned without interruption ever since - an incredible 69 years, 3 months.
Elizabeth II stands as the queen of 16 of the 53 member states in the Commonwealth of Nations, as well as being Head of the Commonwealth and Supreme Governor of the Church of England.
At the age of 89, she holds the record for is the Oldest British monarch in history, exceeding the reign of King George III (1760-1820), who was King until the age of 82. 
Queen Elizabeth II visits GWR HQ 2005
Queen Elizabeth receives a copy of our 50th anniversary edition from GWR President Alistair Richards in 2005
She also holds the record for the Oldest British queen, which she took on 21 December 2007 from her great-great- grandmother Queen Victoria, who reigned until the age of 81 years and 244 days.
The Queen's lengthy reign gives rise to another Guinness World Records title, Longest heir apparent. Since his mother acceded to the throne on 6 February 1952, Prince Charles has been heir apparent for over 63 years, passing the mark set by his great-great-grandfather Edward VII, who finally took to the throne upon the death of Queen Victoria on 22 January 1901 after more than 59 years as heir apparent.
Her Majesty's image is itself record-breaking as The Queen holds the world record for Most currencies featuring the same individual
The Queen's likeness appears on the coinage of at least 45 different countries - more countries than any other living monarch. Queen Victoria appeared on the coinage of 21 countries, and the image of King George V appeared on 19.
Queen Elizabeth II also retains the Wealthiest queen title, with a personal fortune estimated at £310 million ($504 million).