What was the result of the expansion of slavery from 1800 to 1850

In the period between 1800 and 1850 America experienced a marked change in national unity. Territorial expansion had a large effect on national unity in this period. Territorial expansion boosted national unity between 1800 and 1823, but it degraded national unity between 1824 and 1850.

Explanation:because

the best description of the camp david accords is that it was the first time an arab nation had officially recognized the nation of israel.

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast