Harriet Tubman is one of the most famous and important figures in American history. Directly and indirectly responsible for freeing many slaves through the Underground Railroad in the 19th century, she also an armed scout and spy for the Union Army in the Civil War. Whether she ever said, “I freed thousands of slaves. I could have freed thousands more, if they had known they were slaves,” is more uncertain. And we examine the quote in this brief episode. Listen and learn.