On August 28, 1963, Dr. Martin Luther King Jr. stood before thousands of Americans who had gathered at the Lincoln Memorial in Washington, DC, in the name of civil rights. Including the immortal words, "I have a dream," Dr. King's keynote speech would energize a movement and change the course of history. With references to the Gettysburg Address, the Emancipation Proclamation, the Declaration of Independence, the US Constitution, Shakespeare, and...