Prince George's birthday: Five years in the spotlightGetty Images23 July 2013: George makes his first public appearance outside St Mary's Hospital in London. At just one day old, his name had yet to be announced.PA23 October 2013: Prince George is held by his father on his christening day, as they arrive at the Chapel Royal in St James's Palace in LondonPA7 April 2014: The prince, now one, arrives in Wellington, New Zealand, for his first official overseas trip. The family spent three weeks touring Australia and New Zealand.Getty Images9 April 2014: Later during the visit to New Zealand, George played at a local children's group in Wellington.Duke and Duchess of CambridgeTaken in November 2014, the Duke and Duchess of Cambridge released several official photographs of Prince George ahead of Christmas. Here, he is sitting on the steps of a courtyard at Kensington Palace.PAOn 2 May 2015, George's sister Princess Charlotte was born. The same day, he arrived at St Mary's Hospital to meet his younger sister.Duchess of CambridgeA month later, on 6 June 2015, the Duchess of Cambridge took a photo of George and Charlotte together at the family home, Anmer Hall in Norfolk.Reuters13 June 2015: Prince George watches a fly-past by the Royal Air Force from the Buckingham Palace balcony, to mark the Queen's official birthday.Getty Images3 March 2016: George on a skiing trip with his parents and sister in the French Alps.The White House22 April 2016: The prince shakes hands with former US President, Barack Obama, who visited Kensington Palace last year.Duchess of Cambridge6 June 2016: In this photo taken by his mother, Prince George attends his first day of nursery at the Westacre Montessori in Norfolk.PA22 July 2016: On his third birthday, Prince George is shown feeding the family pet dog, Lupo.PA29 September 2016: Prince George playing with bubbles at a party for military families in Canada.PA25 December 2016: George is given a candy cane after leaving the morning Christmas Day service at St Mark's Church, Englefield, near his maternal grandparents' home at Bucklebury, Berkshire.EPAThe day before his birthday, on 21 July 2017, Prince George sat in a helicopter while on a trip to Hamburg, Germany, with his sister and parents.Chris Jackson/Getty ImagesThis official portrait of Prince George was released to mark his fourth birthday on 22 July 2017, taken at Kensington Palace.ReutersGeorge, in his school uniform, heading to hospital to meet his newborn brother Prince Louis in AprilPAGeorge was one of the page boys at his uncle Harry's wedding in MayPAThe prince was seen playing with a toy gun at the Beaufort Polo Club in Tetbury in JuneAFP/GettyHand-in-hand with his father and sister after his baby brother's christening in JulyMatt Porteous/PA WireThe official picture taken for George's fifth birthday was taken after his brother's christeningPrince George photo marks fourth birthdayPrivate school chosen for Prince GeorgePhotos mark Prince George's 3rd birthdayPrince George birthday photo released