Answer:
January 1, 1808
In January 1807, with a self-sustaining population of over four million slaves in the South, some Southern congressmen joined with the North in voting to abolish the African slave trade, an act that became effective January 1, 1808.
The Northwest Ordinance, adopted July 13, 1787, by the Confederation Congress, chartered a government for the Northwest Territory, provided a method for admitting new states to the Union from the territory, and listed a bill of rights guaranteed in the territory.
Explanation:
The answer is variant B verb because it exprime an action made by the subject.
Because Mia Hamm has been a role model for girls since she established herself as one of the greatest female athletes of all time.