The document provides information about slavery in the United States, including:
1) Slaves endured 16 hour workdays from sunup to sundown and cruel punishments. They maintained family ties from extended families tracing back to Africa.
2) Nat Turner was a slave preacher who led a slave rebellion in 1831 that killed 60 white people, increasing southern fears of revolt and leading to innocent blacks being killed.
3) Spirituals were religious songs slaves used to pass hidden messages, and the Underground Railroad was a secret network that helped runaway slaves reach freedom, including Harriet Tubman who returned 19 times as a conductor.