This passage is about the speech of President Jackson in Congress, where he defended the process of remorse of the Indians.
The use of the word "progessive" refers to the continuation of a process begun earlier, where the Indians were massacred and expelled from their territories to the detriment of the white man's civilization. The former president used that term as a way to slow down an attitude that today would be understood as barbarism, but one that is part of US history.
Explanation:
''submission to the will of God".
No one knows for sure. Some people believe there was not enough poison. Others believe he developed an immunity to poison by consuming small accounts of the poison to train his body.
The house of wisdom was founded by Al- Ma’mun and build in Baghdad. It’s main purpose was to translate literature and knowledge.
Hope that helped :)