Prince Charles and Princess Anne celebrate Queen Mother's birthday in 1955, then go on cruise on royal yacht Britannia

The transcript describes a public celebration for the Queen Mother's 55th birthday, attended by Prince Charles and Princess Anne. The event marks the start of a vacation for the young royals, who embark on a cruise aboard the Royal Yacht Britannia. Crowds gather to catch a glimpse of the children, especially Prince Charles, who is affectionately nicknamed 'Bonny Prince Charlie' by the Britons. The transcript concludes with the royal children sailing away in a storybook fashion.

What special event were the crowds in London celebrating?

How old was Prince Charles when he celebrated his birthday?

What was the significance of the Queen mother's birthday in relation to the Prince and Princess?

What mode of transportation did the Prince and Princess use for their cruise?

What nickname is given to the young Prince Charles by the Britons?