Celebrating Ramadan is one of the Five Pillars of Islam, but continuing that ritual wasn't always easy, especially for slaves in the New World.

In 1854, Harriet Tubman helped her brothers and their families escape slavery on Christmas Day before they were sold.

Slavery is a central paradox of much of American history. In fact, most of the country's founding fathers owned slaves.

Born a slave, Harriett Tubman became a famous "conductor" on the Underground Railroad, leading hundreds of slaves to freedom.