Why did england decide to keep troops along the colonies western edge after the war

Which two factors caused many americans to migrate to the west in the mid-nineteenth century? pick two the texas revolution discovery of gold at sutter’s mill the mexican-american war an interest in american indian culture cheap land prices

How did francis bacon challenge the way of thinking about science

Between 1870 and 1916, approximately how many immigrants came to the united states? 10 million 25 million 75 million 125 million