Northern lawmakers were convinced to admit Missouri as part
of the Union due to the Missouri Compromise because they also admitted Maine to
the Union. There anti-slavery and
pro-slavery states in the Union. Missouri was a slave state and if it was
admitted, it would change the balance in favor of those who advocated
slavery. Maine was a free state so if
Main was also admitted, it would maintain the balance between the two opposing
ideologies. Aside this, an imaginary
boundary was made along the former Louisiana Territory that kept free state and
slave state apart until the
Kansas-Nebraska Act of 1854.
