What were the causes. and consequences of the us westward expansion

Is the weather changing? consider the data of severe weather that includes tornadoes occurring throughout the u. s. over the last four years. compare the severe weather for the last three years. then compare the first three months of 2017 with that data. based on previous years, what might the prediction be for weather during 2017?

Why did french and austrian troops stops revolts in spain and italy

Would creole revolutionaries tend to be democratic or authoritarian leaders?