Timeline: William & Kate's romance

February 2011: First wedding invitations sent out.

Photo: Prince William and Kate Middleton pose in the Council Chamber in the State Apartment in St. James's Palace in London on Nov. 25, 2010.

Pictures: Prince William and Kate Middleton
Pictures: Kate Middleton
Complete coverage: Britain's royal wedding

Credit: Mario Testino/Clarence House Press Office via Getty Images