New Delhi, June 20 -- The birth of Prince William on June 21, 1982, was a big celebration across the UK. The future king was born at 9 PM, weighing 7lb 1oz. He was called "Baby Wales" for the first few days.

Diana had a tough pregnancy and delivery, which made the birth even more emotional. Still, the day remained joyful and marked the arrival of a future monarch.

Ahead of Prince William's birthday, let's look back and see what happened on that day.

When Princess Diana was in labour with Prince William, her body temperature rose, causing concern for the baby's health. She was in labour for 16 hours under the care of Queen's surgeon, George Pinker.

Diana was very sick, and doctors even considered a Caesarean. However, she later gave bi...