Queen Elizabeth ll and Prince Philip wave to well-wishers in October 1981 in Wellington, New Zealand. It was on that trip that the apparent assassination attempt occurred.
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Chinese President Xi Jinping (left) toasts with Britain's Queen Elizabeth II during a state banquet at Buckingham Palace in London on the first day of the state visit in October 2015. Elizabeth said on camera that Chinese officials had been "very rude" during the official visit.