 This celebration continued from April 1 to November 30 with over a million participants, including dignitaries and politicians such as the British Ambassador and U.S. Vice President Richard Nixon.The highlight for many of the nearly 25,000 at the Festival Park on October 16, 1957 was the visit and speech of Queen Elizabeth II of the United Kingdom and her consort, Prince Philip.Queen Elizabeth II loaned a copy of the Magna Carta for the exhibition.