I freed thousands of slaves, and could have freed thousands more, if they had known they were slaves.
Today in Freedom
On September 17, 1787, the Constitution of the United States was signed in Philadelphia, Pennsylvania.
In 1849 on this same day in September, Harriet Tubman escaped to freedom in Philadelphia, but soon returned to Maryland to rescue her family. She made at least 13 trips into the slave-owning South to liberate more than 70 slaves before the Civil War (in which she served as a spy for the North).