Slave trade: Domestic (within U.S.)

• 1784: Suicides as protest revive abolitionist group

• 1794: Slave trade law fails to curb trafficking

• 1807: Smugglers deft slave import ban

• 1820: Maine becomes a free state in deal over slavery

• 1833: Domestic slave trade: over one million send south

• 1835: Enslaved workers lay foundation for modern rail network

• 1835: 600 sold in largest single sale of enslaved people

• 1839-1841: Revolts cast spotlight on illegal slave trade

• 1842 "Under ground Rail-road" promoter transports hundreds to freedom

• 1845: Texas takeover decried as land grab for slavery

• 1857: "The Weeping Time": Enslaver sells 429 people in two days