Verified Answer :

The 36° 30' line, aka the Mason-Dixon line

Parallel 36°30North

The Parallel 36°30 north is the line that divides the slave
and free states. During this time the US was divided because of the issue of
slavery between the North and South Cities of the United States. This sectional
issue had caused a major rift in the US after both factions had raged war
against each other.