April 3, 2008 - Practices landings and takeoffs in RAF Chinook helicopter in backyard of Kate Middleton's family's estate in Bucklebury, Berkshire.

April 11, 2008 - Prince William receives Royal Air Force pilot's wings.

April 27, 2008 - Prince William secretly travels to Afghanistan aboard a C-17 transport plane and receives a briefing on military operations. Reportedly, he pilots the plane during part of the flight and escorts the body of Queens Royal Lancer, Trooper Robert Pearson to his family.

June 2-September 8, 2008 - Prince William serves a two-month attachment with the Royal Navy in the Caribbean. William is known as Sub Lieutenant Wales on the ship, whose mission is counter-narcotics and hurricane relief.

June 16, 2008 - Is invested as a 'Royal Knight Companion of the Most Noble Order of the Garter'. He becomes the youngest knight and 1,000th member in the world's oldest order of chivalry, started in 1348.

February 2010 - Prince William becomes the new president of the British Academy of Film and Television Arts (BAFTA).

November 16, 2010 - Prince Charles announces the engagement of Prince William to his longtime girlfriend Kate Middleton.

April 29, 2011 - The Queen confers a Dukedom on Prince William of Wales. His titles will be Duke of Cambridge, Earl of Strathearn and Baron Carrickfergus.

April 29, 2011 - Marries Catherine Middleton at Westminster Abbey.

June 2011 - The Duke and Duchess of Cambridge make an apartment on the grounds of Kensington Palace their London home.

June 30-July 8, 2011 - First official trip to a foreign country for the royal couple, to Canada.

July 8-10, 2011 - The Duke and Duchess of Cambridge visit Los Angeles for a three day visit. During the trip the Duke plays and wins a polo match and the couple visits Hollywood and Skid Row.

June 7, 2012 - William qualifies as an operational captain with the Royal Air Force Search and Rescue Force. He is now able to command search and rescue operations by helicopter.

September 17, 2012 - Along with his wife, Prince William files a criminal complaint in France against the photographer who took pictures of the Duchess privately sunbathing topless. They are seeking damages and to prevent further publication of the photos. The French magazine, Closer, Italian magazine, Chi, and the Irish Daily Star have each published some of the topless photos.

July 22, 2013 - Duchess Catherine gives birth to the couple's first child, a son weighing 8 lbs, 6 oz. The baby will have the title of the Prince of Cambridge.