International Talk Like a Pirate Day - celebrated September 19 is a parodic holiday created in 1995 by John Baur (Olí Chumbucket) and Mark Summers (Capín Slappy), of Albany, Oregon, U.S., who proclaimed September 19 each year as the day when everyone in the world should talk like a pirate. For example, an observer of this holiday would greet friends not with "Hello," but with "Ahoy, matey!" The holiday, and its observance, springs from a romanticized view of the Golden Age of Piracy.
At first an inside joke between two friends, the holiday gained exposure when John Baur and Mark Summers sent a letter about their invented holiday to the American syndicated humor columnist Dave Barry in 2002. Barry liked the idea and promoted the day. Growing media coverage of the holiday after Barryís column has ensured that this event is now celebrated internationally, and Baur and Summers now sell books and T-shirts on their website related to the theme. Part of the success for the international spread of the holiday has been attributed to non-restriction of the idea or non-trademarking, in effect opening the holiday to creativity and "viral" growth.
Source: wikipedia.org | talklikeapirate.com