The Dred Scott vs. Sandford case was monumental in America, as it stated that slaves had no rights which their owners were bound to respect. Along with this, it also stated that slaves are property and can be brought into free states.
This case causes significant divide between the nation. The southern states and those individuals with slaves see this as a victory, as they can now take their slaves wherever they want without the fear of these individuals becoming free men. On the other hand, abolitionists and states who outlawed slavery are furious. This is because they now have to allow slave owners to keep their slaves in a state where they do not want slavery. This case resulted in a bigger divide between those for slavery and those against slavery.
In August 1619 more people arrived on the Dutch Man-of-War ship at Jamestown colony. This is the earliest record of Black people in colonial America. These colonists were freemen and indentured servants. At this time the slave trade between Africa and the English colonies had not yet been established.
Records from 1623 and 1624 listed the African inhabitants of the colony as servants, not slaves. In the case of William Tucker, the first Black person born in the colonies, freedom was his bright right. He was son of "Antony and Isabell", a married couple from Angola who worked as indentured servants for Captain William Tucker whom he was named after. Yet, court records show that at least one African had been declared a slave by 1640; John Punch. He was an indentured servant who ran away along with two White indentured servants and he was sentenced by the governing council to lifelong servitude. This action is what officially marked the institution of slavery in Jamestown and the future United States.
The answer for your question is C lack of food and water and B disease
Mexico claimed it before 1821, but after im pretty sure only america claimed new mexico
Because then you can hire a tutor to help you instead of asking random people.