Dick and the King.

What an auspicious day! For it not only marks the birthdays of benevolent Swedish monarch Dante Fontana and genius American composer Frank Zappa. It is also the 40th anniversary of the day Elvis Presley showed up unannounced at the White House asking to be made a federal drug enforcement agent. He was eventually whisked inside to be introduced President Richard Nixon in one of the more surreal summit meetings between politics and pop culture. The National Archives has an interactive online presentation about the event, filled with plenty of Flash and other modern internet trickery.