Duchess of Cambridge Gives Birth to a Boy

Terry Hutt, a 78-year-old from Cambridge camped for 12 days. "This is my longest experience to camp," he said. "But it is lovely to be around. I am glad to see it is a healthy baby."

Teba Diatta, 31, made a cake for the occasion, on which she wrote: "Come on Kate, we can't wait. Give us something to celebrate."

She told Xinhua she made the cake just for fun, which she shared with reporters later. "It is not easy for them," she said.

Even tourists joined in the revelry. Miriam, a 62-year-old from Italy, said: "I am travelling in London while my sister told me 'Kate is in labour'. So I came here immediately."

When she realized that she left her camera in the hotel, Miriam bought a disposable one. "I will make a special album for the royal baby," she beamed.

There will be a 41-gun salute at London's Hyde Park and 62 rounds fired at the Tower of London later Tuesday to herald news of the birth.

Prince William, the Duke of Cambridge, was born in the same hospital in 1982, as well as his brother Prince Harry.

William and Kate held a spectacular wedding at Westminster Abbey in April 2011. Kate was confirmed as pregnant last December.

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