Alt Text Two maps of the United States dated 1790 and 1860 show states and territory where slavery was permitted or prohibited. State lines are drawn but states are not named. Extended Description The map dated 1790 shows the east coast of the United States at a time before modern-day Florida was part of the country. The other states from Georgia north to Maryland and Delaware are dark pink, indicating that slavery was permitted. The rest of the northern states are light pink to show that slavery was prohibited, except for New York and New Jersey, which are darker pink. The Northwest Territory, which wraps under and around the Great Lakes, is light green to indicate that slavery was prohibited. The map dated 1860 shows more of the United States, now stretching from the east coast to two-thirds of the way across the country. Missouri, Kentucky, Virginia, and Maryland and states south are slave states, as is Texas to the west. The states north of Missouri, Kentucky, Virginia, and Maryland are paler pink, indicating that slavery was prohibited. Tan territories north of Texas permitted or prohibited slavery by local decision. A note with the 1860 map reads, “Not shown: Slavery prohibited in the states of California and Oregon.” Legend The legend under the maps reads as follows: Darker pink for Slavery permitted, Lighter pink for Slavery prohibited, Light green for Northwest Territory- slavery prohibited, Tan for Territories where slavery permitted by local decision, and Ivory-white for Not part of the United States.