The Queen has received over 3.5 million items of correspondence during her reign.
Since 1952, she has conferred over 404,500 honors and awards.
She sent her first e-mail in 1976, from a British army base.
About 1.5 million people have attended garden parties at Buckingham Palace or the Palace of Holyroodhouse in Scotland since Elizabeth has been on the throne.
Over the course of her reign, she has given regular Tuesday-evening audiences to 12 British Prime Ministers.
