A Brief History of St. Patrick's Day

How St. Patrick's Day got its start remains a surprising tale.

But more than 1,500 years after St. Patrick’s death, the truth about how the March 17th holiday got its start remains a surprising tale for most revelers.

To clear up the mythology surrounding this adored holiday, ABC News’ George Stephanopoulos has a brief history of St. Patrick’s Day. Watch the video above.