Queen Elizabeth celebrates 91st birthday

Britain's Queen Elizabeth, the world's oldest and longest-reigning monarch, celebrated her 91st birthday in a usual low-key fashion on Friday.

Artillery gun salutes in London's Hyde Park and at the Tower of London will mark the occasion although the queen, who normally spends her birthday privately, has no formal engagements planned herself.


Elizabeth was born on April 21, 1926 in Bruton Street in central London when Calvin Coolidge was U.S. President and Joseph Stalin had just taken control in the Soviet Union and became queen in 1952 at 25.