Identify and explain the causes of the creation of Manitoba. what were the intended and unintended consequences

How did the united states obtained the purchase of floridia to extand its frontiers to the pacific ocean

How important was the erie canal in in connect, unify and expand the nation

Ihonestly don't know how to revise, like i'm struggling so much to remember things and i really don't know what to do at this rate. does anyone have any advice? especially with american history, i've got 5 topics in this section.