Prince William recorded a personal video message for the Queen Elizabeth Digital Memorial website, reminiscing about his time in Windsor with his late grandmother.

He would have been alive during the reign of King William IV and seen Queen Victoria come to the throne as a young child. From there, the entire Victorian era unfolded, followed by the turn of the 20th century and the end of the British Empire at its height.He has lived through the invention of the telephone, electric light, the first cars, aviation, radio, television, and eventually the internet.On the world stage that includes the American Civil War, both World Wars, the Cold War, the moon lan

As Prince William celebrates his 44th birthday, a look back at the first 18 months of the Prince of Wales' life via @ABC News archive footage. https://t.co/CV7tWt7FSl