Question

Under the compromise, __________ became the northern boundary for future slave states.

Answer 1

The northern boundary for future slave states under the compromise was the 36° 30′ parallel.

Step-by-step explanation:

Under the Missouri Compromise of 1820, the northern boundary for future slave states was established at the 36° 30′ parallel, which runs east from Missouri to the western edge of the Louisiana Purchase lands. South of this line, slavery could expand, while north of it, including the unorganized territory, slavery was prohibited.

Answer 2

The 36° 30' parallel became the northern boundary for future slave states under the Missouri Compromise of 1820, aimed at balancing the interests of free and slave states.

Step-by-step explanation:

Under the Missouri Compromise of 1820, the 36° 30' parallel became the northern boundary for future slave states. This compromise was orchestrated by Henry Clay and allowed Missouri to join the Union as a slave state, while Maine joined as a free state.

The compromise aimed to maintain a balance between free and slave states and to reduce sectional conflicts by drawing a line across the Louisiana Purchase territory, with slavery prohibited north of this latitude, except for Missouri.