Why is A. Jackson considered a controversial president? Bonus: What is currency and how does it relate to A. Jackson?

How was Jackson considered the 1st "American President
To vote before 1828, you had to be a

3x as many people voted in 1828 because

Bonus: Was Jackson a democrat or a republican?
The Adams - Onis Treaty gave possession of which Indian Tribes' lands to the USA?

Before they can be published, scientific papers must be peer-reviewed. this means that: a) some other scientific experts read the papers and guarantee that they are true.b) some other scientific experts read the papers and provide quality control by eliminating many mistakes.c) an editor reads the papers, to make sure that all the semicolons are in the correct places.d) everyone in the world is given the opportunity to comment on the papers through a specially maintainedblog.e) government bureaucrats read the papers, to be sure that the papers do not insult the political positions ofthe current officeholders.