During the early nineteenth century, the South was distinct from the rest of the United States due to several reasons.
These reasons include:
1- The increase in the number of slaves
2- The race superiority and the bridge (gap) that was found between the races
3- The distribution of the crops
4- The "Peculiar Institution" which is a term that referred mainly to the system of slavery that existed in the South during this period.
The colonization of African tribes by Christian and Islamic peoples led to many of the African natives taking up these foreign religions as the tribes were often pressured into converting.
The Republican Isolationists refused to ratify President Wilson's League of Nations plan because D) they were opposed to Article 10 that could infringe upon the United States' right to declare war and expand its territories.
I Believe the answer is: Personal records
Personal record revers to a form of primary source which information is derived from the observation or the experiments that being done by the source writers themselves. In most cases, personal records are created by experts on the relevant fields.