National Popcorn Day The Origin of Popcorn Outside the box ideas: It's a music style , an instrumental song , and in evangelical circles it is the Christianese term for prayer time in which anyone can pray, i.e. Popcorn Prayer . Do the Popcorn Dance! (I'm not joking!) Tin Can Day History of the Can: An Interactive Timeline The can opener wasn't invented until 48 years after the invention of the can Martin Luther King Jr Birthday Observance Is there really anyone who doesn't know about Martin Luther King Jr?  And not just in the United States but in the world? The Making of The King Holiday The Biography of Martin Luther King Jr MLK, Jr. Remembered Letter from a Birmingham Jail Recently discovered in UCLA Archives and just released publicly  here is MLK speaking at UCLA in April 1965