April 15, 1947, is a day etched into the stone of American history and the Civil Rights Movement. It was more than a year before U.S. President Harry Truman desegregated the U.S. military. Seven years before the U.S. Supreme Court’s Brown vs. Board of Education decision striking down public school segregation. Eight years before Rosa Parks refused to give up her seat on a Montgomery bus. Sixteen years before the Reverend Martin Luther King Jr. gave his “I Have a Dream” speech.