In 2002, Elizabeth marked her Golden Jubilee as queen. Her sister and mother died in February and March, respectively, and the media speculated whether the Jubilee would be a success or a failure.
Though Elizabeth has enjoyed good health throughout her life, in 2003 she had keyhole surgery on both knees, and in June 2005 she cancelled several engagements after contracting a bad cold. In October 2006, the Queen cancelled her appointment to officially open the new Emirates Stadium, because of a strained back muscle that had been troubling her since the summer.
The Queen and the Duke of Edinburgh celebrated their 60th wedding anniversary in 2007; their marriage is the longest of any British monarch. The Queen's reign is longer than those of her four immediate predecessors combined (Edward VII, George V, Edward VIII, and George VI).

By: Alaincoins