Rhode Island
The Quaker/ Purtains religion didn't allow for slaves, but the first slave was in 1619 in Jamestown.
London had a monopoly on the slave trade until the late 17th century. From then on Liverpool in the North West and Bristol in the South West were the two ports most heavily involved
The admission of California as free soil, and the abolition of the slave-trade in DC.
The history of Slave trading and codes is quite extensive. The Dutch held a monopoly over the Slave trade between 1500 and 1850.
who did the commerce and slave trade compromise benefit
Royal African Company
District of Columbia
between 1450 and 1850
because i don't know now
they got all the money from selling the slaves
In 1850, the Southern slave states along with Missouri, Kentucky and Tennessee benefited form their agriculture based economy. The use of slave labor allowed them to price products such as cotton, lower than "normal". Of course in 1850, Northern textile mills were good customers of cotton. The USA as a whole benefited from the Southern farm products.Also, in 1850, there was less pressure on slave owners to even examine the British plan of freeing all slaves and compensating slave owners for their "losses".
District of Columbia
Rhode Island
Yes, the slave trade was indeed prohibited in the District of Columbia in 1850 through the passage of the Compromise of 1850. However, slavery itself remained legal in the District until it was abolished with the passage of the 13th Amendment in 1865.
The two I know of for sure ar Manchester and Liverpool
Compromise of 1850