On Aug. 28, 1963, Dr. Martin Luther King Jr. delivered one of the most famous speeches in human history. On the steps of the Lincoln Memorial in an address that culminated the march on Washington, King delivered his "I Have a Dream" speech. Lasting less than 18 minutes, King's speech has inspired millions around the world. 

But where did King actually draft his speech? Conventional history records he wrote the speech at the Willard Intercontinental Hotel in Washington, D.C. But David Yoakley Mitchell of the Atlanta Preservation Center and Dr. Robert Adams of the Penn Center on St. Helena Island, South Carolina, say one of history's most influential speeches has its roots elsewhere.