In 1819, two states joined the U. S. This meant that there were 12 states that allowed slavery and 12 states that did not. Which two were they?

Explanation:

Slavery in what would become the United States was established during European colonization. In 1776, slavery was legal throughout the Thirteen Colonies, after which colonies started to abolish the practice. Pennsylvania abolished slavery in 1780, and about half the states abolished slavery by the end of the Revolutionary War or in the first decades of the new country, although this did not always mean that existing slaves were freed. Although not one of the Thirteen Colonies, Vermont declared its independence from Britain in 1777 and at the same time limited slavery, before being admitted as a state in 1791.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.

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