William at 40: A milestone birthday in a life under scrutiny

FILE Britain's Prince William, left, cheers as he makes his water polo debut for the Scottish national universities squad in the annual Celtic Nations tournament against Wales and Ireland in Cardiff, Wales, Saturday, April 17, 2004. The world watched as Prince William grew from a towheaded schoolboy to a dashing air-sea rescue pilot to a father of three. But as he turns 40 on Tuesday, June 21, 2022, William is making the biggest change yet: assuming an increasingly central role in the royal family as he prepares for his eventual accession to the throne. (Barry Batchelor, Pool via AP, File)