It's Day One of parenting for William and Kate. After the excitement, fatigue and joy of childbirth -- emotions shared with a nation -- the young couple is expected to bring the prince home and start to care for him.
But the lad's name -- and his likeness -- remain a royal mystery. And as the infant child begins a long journey expected to see him someday become a king, Brits -- and indeed people from around the world -- joined the royal family in celebration.
"It's a Boy!" was splashed across many front pages, while Britain's top-selling The Sun newspaper temporarily changed its name to "The Son" in honor of the tiny monarch-in-waiting.
A gun salute to mark the child's birth is expected later Tuesday.