Mexico at first did not allow the people of Texas to own slaves. After winning independence and however, Texas allowed slavery. Once slavery was allowed, after a few years of independence, texas asked to enter the US as a slave state.
So Texas went from a territory of Mexico that had slavery banned to a state in the US with slavery (after independence)
hope this helps
The Mid Atlantic borders the subregion of New England
In the United States and in other western democracies, the "Unwritten Constitution" includes the practice of "issuing currency," since this is not explicitly mentioned in the Constitution.