<span>John C. Calhoun
was the US South Senator who believed that slavery was necessary. He was a
political theorist that believed in republicanism, which also included the
approval of slavery. He defended slavery as a “positive good” and as a result
Southern minority threats escalated. </span>
Answer:
A.
Explanation:
The 14th Amendment to the U.S. Constitution, ratified in 1868, granted citizenship to all persons born or naturalized in the United States—including former slaves—and guaranteed all citizens “equal protection of the laws.” One of three amendments passed during the Reconstruction era to abolish slavery and establish
They were among the first to develop a system of uniform weights and measures. Their building bricks w<span> This was the first civilization to incorporate urban sanitation systems. Personal hygiene seems to have been a high priority. </span>ere very uniform making city planning easy. <span> Transportation and trade were major goals of these people. Their trade network ran from Mesopotamia to northern and central India. Their empire was economic, not military. </span>
