The central figure is john brown. why does the artist depict him as such a large figure, and why is he standing between the two sides?

I wager you're talking about Tragic Prelude, the mural painted by John Steuart Curry.

To answer your question: Curry probably had Brown stand between the two sides to emphasize the increasing divide between the North and the South of the United States during this period, a divide that has only grown due to Brown's actions at Harpers Ferry.  

Curry also probably represented Brown as such a large figure to highlight his importance in the leadup to the Civil War.  He is also represented as a fanatic who would kill and be killed for his beliefs.

as general terms,  indian territory,  the indian territories, or  indian country  describe an evolving land area set aside by the  united states government  for the relocation of  native americans  who held  aboriginal title  to their land. in general, the tribes ceded land they occupied in exchange for  land grants  in 1803. the concept of an indian territory was an outcome of the 18th- and 19th-century policy of  indian removal. after the  civil war(1861–1865), the policy of the government was one of  assimilation.

i think 3 documents.

hope i

-lavira: )